diff --git a/src/airflow/dags/gwas_curation_update.py b/src/airflow/dags/gwas_curation_update.py
index 1ef0f39f9..830007e6d 100644
--- a/src/airflow/dags/gwas_curation_update.py
+++ b/src/airflow/dags/gwas_curation_update.py
@@ -18,7 +18,7 @@
 ):
     update_gwas_curation = common.submit_step(
         cluster_name=CLUSTER_NAME,
-        step_id="gwas_catalog_curation_update",
+        step_id="ot_gwas_catalog_study_curation",
         task_id="gwas_catalog_curation_update",
         other_args=[
             f"step.gwas_catalog_study_curation_out=gs://genetics_etl_python_playground/input/v2d/GWAS_Catalog_study_curation_{RUN_DATE}.tsv",
diff --git a/src/gentropy/datasource/gwas_catalog/study_index.py b/src/gentropy/datasource/gwas_catalog/study_index.py
index cb6d3338a..e8b49b0da 100644
--- a/src/gentropy/datasource/gwas_catalog/study_index.py
+++ b/src/gentropy/datasource/gwas_catalog/study_index.py
@@ -305,6 +305,7 @@ def _parse_study_table(
                 parse_efos(f.col("MAPPED BACKGROUND TRAIT URI")).alias(
                     "backgroundTraitFromSourceMappedIds"
                 ),
+                cls.parse_cohorts(f.col("COHORT")).alias("cohorts"),
             ),
             _schema=StudyIndexGWASCatalog.get_schema(),
         )
@@ -548,14 +549,6 @@ def annotate_ancestries(
             )  # studyId has not been split yet
         )
 
-        # Parsing cohort information:
-        cohorts = ancestry_lut.select(
-            f.col("STUDY ACCESSION").alias("studyId"),
-            GWASCatalogStudyIndexParser.parse_cohorts(f.col("COHORT(S)")).alias(
-                "cohorts"
-            ),
-        ).distinct()
-
         # Get a high resolution dataset on experimental stage:
         ancestry_stages = (
             ancestry.groupBy("studyId")
@@ -644,9 +637,7 @@ def annotate_ancestries(
         ).select(
             "studyId", "discoverySamples", "ldPopulationStructure", "replicationSamples"
         )
-        self.df = self.df.join(parsed_ancestry_lut, on="studyId", how="left").join(
-            cohorts, on="studyId", how="left"
-        )
+        self.df = self.df.join(parsed_ancestry_lut, on="studyId", how="left")
         return self
 
     def annotate_sumstats_info(
diff --git a/tests/gentropy/conftest.py b/tests/gentropy/conftest.py
index 13409ac16..78bd567da 100644
--- a/tests/gentropy/conftest.py
+++ b/tests/gentropy/conftest.py
@@ -414,7 +414,7 @@ def mock_ld_index(spark: SparkSession) -> LDIndex:
 def sample_gwas_catalog_studies(spark: SparkSession) -> DataFrame:
     """Sample GWAS Catalog studies."""
     return spark.read.csv(
-        "tests/gentropy/data_samples/gwas_catalog_studies_sample-r2022-11-29.tsv",
+        "tests/gentropy/data_samples/gwas_catalog_studies.tsv",
         sep="\t",
         header=True,
     )
@@ -424,7 +424,7 @@ def sample_gwas_catalog_studies(spark: SparkSession) -> DataFrame:
 def sample_gwas_catalog_ancestries_lut(spark: SparkSession) -> DataFrame:
     """Sample GWAS ancestries sample data."""
     return spark.read.csv(
-        "tests/gentropy/data_samples/gwas_catalog_ancestries_sample_v1.0.3-r2022-11-29.tsv",
+        "tests/gentropy/data_samples/gwas_catalog_ancestries.tsv",
         sep="\t",
         header=True,
     )
@@ -444,7 +444,7 @@ def sample_gwas_catalog_harmonised_sumstats_list(spark: SparkSession) -> DataFra
 def sample_gwas_catalog_associations(spark: SparkSession) -> DataFrame:
     """Sample GWAS raw associations sample data."""
     return spark.read.csv(
-        "tests/gentropy/data_samples/gwas_catalog_associations_sample_e107_r2022-11-29.tsv",
+        "tests/gentropy/data_samples/gwas_catalog_associations.tsv",
         sep="\t",
         header=True,
     )
diff --git a/tests/gentropy/data_samples/gwas_catalog_ancestries.tsv b/tests/gentropy/data_samples/gwas_catalog_ancestries.tsv
new file mode 100644
index 000000000..48423eeee
--- /dev/null
+++ b/tests/gentropy/data_samples/gwas_catalog_ancestries.tsv
@@ -0,0 +1,20 @@
+STUDY ACCESSION	PUBMED ID	FIRST AUTHOR	DATE	INITIAL SAMPLE DESCRIPTION	REPLICATION SAMPLE DESCRIPTION	STAGE	NUMBER OF INDIVIDUALS	BROAD ANCESTRAL CATEGORY	COUNTRY OF ORIGIN	COUNTRY OF RECRUITMENT	ADDITIONAL ANCESTRY DESCRIPTION	ANCESTRY DESCRIPTOR	FOUNDER/GENETICALLY ISOLATED POPULATION	NUMBER OF CASES	NUMBER OF CONTROLS	SAMPLE DESCRIPTION
+GCST004795	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	205	Asian unspecified, African American or Afro-Caribbean, Native American, Other admixed ancestry	NR	U.S.
+GCST004795	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	356	European	NR	U.S.
+GCST004796	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	356	European	NR	U.S.
+GCST004796	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	205	Asian unspecified, African American or Afro-Caribbean, Native American, Other admixed ancestry	NR	U.S.
+GCST004797	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	205	Asian unspecified, African American or Afro-Caribbean, Native American, Other admixed ancestry	NR	U.S.
+GCST004797	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	356	European	NR	U.S.
+GCST004794	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	356	European	NR	U.S.
+GCST004794	28763065	Xia K	2017-08-01	295 European, African American, Asian, Native American and other admixed ancestry infants, 17 European, African American, Asian, Native American and other admixed ancestry sibling pairs, 116 European, African American, Asian, Native American and other admixed ancestry twin pairs.	NA	initial	205	Asian unspecified, African American or Afro-Caribbean, Native American, Other admixed ancestry	NR	U.S.
+GCST005522	23459209	Faraco J	2013-01-01	1,886 European ancestry cases, 10,421 European ancestry controls	NA	initial	12307	European	NR	Canada, U.S., Australia, Austria, France, Germany, Netherlands, Switzerland, Argentina, Israel, Turkey, Czech Republic, Poland, Slovakia, Denmark, Finland, Norway, U.K., Italy, Portugal, Spain
+GCST004692	27455348	van Rheenen W	2016-07-25	12,577 European ancestry cases, 23,475 European ancestry controls	2,579 European ancestry cases, 2,767 European ancestry controls	initial	36052	European	NR	U.S., Belgium, France, Germany, Netherlands, Switzerland, Finland, Republic of Ireland, Sweden, U.K., Italy, Portugal, Spain
+GCST004692	27455348	van Rheenen W	2016-07-25	12,577 European ancestry cases, 23,475 European ancestry controls	2,579 European ancestry cases, 2,767 European ancestry controls	replication	5346	European	NR	Australia, Belgium, France, Germany, Netherlands, Turkey, Republic of Ireland, Italy
+GCST005134	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	replication	64	Greater Middle Eastern (Middle Eastern, North African or Persian)	NR	France
+GCST005134	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	replication	431	European	NR	France
+GCST005134	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	initial	448	European	NR	France
+GCST005134	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	initial	47	Greater Middle Eastern (Middle Eastern, North African or Persian)	NR	France
+GCST005135	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	initial	448	European	NR	France
+GCST005135	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	initial	47	Greater Middle Eastern (Middle Eastern, North African or Persian)	NR	France
+GCST005135	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	replication	431	European	NR	France
+GCST005135	28800628	Salem JE	2017-08-11	448 European ancestry individuals, 47 North African ancestry individuals	431 European ancestry individuals, 64 North African ancestry individuals	replication	64	Greater Middle Eastern (Middle Eastern, North African or Persian)	NR	France
diff --git a/tests/gentropy/data_samples/gwas_catalog_ancestries_sample_v1.0.3-r2022-11-29.tsv b/tests/gentropy/data_samples/gwas_catalog_ancestries_sample_v1.0.3-r2022-11-29.tsv
deleted file mode 100644
index 92d87d92b..000000000
--- a/tests/gentropy/data_samples/gwas_catalog_ancestries_sample_v1.0.3-r2022-11-29.tsv
+++ /dev/null
@@ -1,20 +0,0 @@
-STUDY ACCESSION	PUBMED ID	FIRST AUTHOR	DATE	INITIAL SAMPLE DESCRIPTION	REPLICATION SAMPLE DESCRIPTION	STAGE	NUMBER OF INDIVIDUALS	BROAD ANCESTRAL CATEGORY	COUNTRY OF ORIGIN	COUNTRY OF RECRUITMENT	ADDITIONAL ANCESTRY DESCRIPTION	ANCESTRY DESCRIPTOR	FOUNDER/GENETICALLY ISOLATED POPULATION	NUMBER OF CASES	NUMBER OF CONTROLS	SAMPLE DESCRIPTION	COHORT(S)	COHORT-SPECIFIC REFERENCE
-GCST008644	26546613	Gutierrez-Achury J	2016-01-01	371 South Asian ancestry celiac disease cases, 3,138 European ancestry celiac disease cases,  4,418 European ancestry rheumatoid arthritis cases,  509 South Asian ancestry celiac disease controls, 2,473 European ancestry celiac disease controls, 3,300 European ancestry rheumatoid arthritis controls, 8,872 celiac disease cases, 9,401 rheumatoid arthritis cases, 4,845 celiac disease controls, 9,627 rheumatoid arthritis controls	NA	initial	32475	NR	NR	U.S., Netherlands, U.K.
-GCST008644	26546613	Gutierrez-Achury J	2016-01-01	371 South Asian ancestry celiac disease cases, 3,138 European ancestry celiac disease cases,  4,418 European ancestry rheumatoid arthritis cases,  509 South Asian ancestry celiac disease controls, 2,473 European ancestry celiac disease controls, 3,300 European ancestry rheumatoid arthritis controls, 8,872 celiac disease cases, 9,401 rheumatoid arthritis cases, 4,845 celiac disease controls, 9,627 rheumatoid arthritis controls	NA	initial	13329	European	NR	Sweden, Poland, Italy, Spain
-GCST008644	26546613	Gutierrez-Achury J	2016-01-01	371 South Asian ancestry celiac disease cases, 3,138 European ancestry celiac disease cases,  4,418 European ancestry rheumatoid arthritis cases,  509 South Asian ancestry celiac disease controls, 2,473 European ancestry celiac disease controls, 3,300 European ancestry rheumatoid arthritis controls, 8,872 celiac disease cases, 9,401 rheumatoid arthritis cases, 4,845 celiac disease controls, 9,627 rheumatoid arthritis controls	NA	initial	880	South Asian	NR	India
-GCST004026	27911795	Schumann G	2016-11-28	up to 70,460 European ancestry drinker individuals	up to 35,438 European ancestry drinker individuals	replication	35438	European	NR	Finland, Sweden, Italy, Netherlands, U.K., Austria, France, Republic of Ireland
-GCST004026	27911795	Schumann G	2016-11-28	up to 70,460 European ancestry drinker individuals	up to 35,438 European ancestry drinker individuals	initial	70460	European	NR	Finland, U.S., Australia, Iceland, Netherlands, Germany, U.K., Switzerland, Estonia, NR
-GCST004027	27911795	Schumann G	2016-11-28	up to 74,711 European ancestry heavy and light/non-drinker individuals	up to 31,021 European ancestry heavy and light/non-drinker individuals	initial	74711	European	NR	Finland, U.S., Australia, Iceland, Netherlands, Germany, U.K., Switzerland, Estonia, NR, France
-GCST004027	27911795	Schumann G	2016-11-28	up to 74,711 European ancestry heavy and light/non-drinker individuals	up to 31,021 European ancestry heavy and light/non-drinker individuals	replication	31021	European	NR	Finland, U.S., Italy, Netherlands, U.K., Austria, Republic of Ireland
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	23	South Asian	NR	U.S.
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	329	Hispanic or Latin American	NR	U.S.
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	21	African American or Afro-Caribbean	NR	U.S.
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	273	European	NR	U.S.
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	22	Other	NR	U.S.
-GCST004281	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	122	Asian unspecified	NR	U.S.
-GCST004284	28235828	Traglia M	2017-04-03	764 fetuses	NA	initial	764	European, South Asian, Asian unspecified, African American or Afro-Caribbean, Hispanic or Latin American, Other	NR	U.S.
-GCST004285	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	329	Hispanic or Latin American	NR	U.S.
-GCST004285	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	273	European	NR	U.S.
-GCST004285	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	23	South Asian	NR	U.S.
-GCST004285	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	21	African American or Afro-Caribbean	NR	U.S.
-GCST004285	28235828	Traglia M	2017-04-03	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	initial	22	Other	NR	U.S.
diff --git a/tests/gentropy/data_samples/gwas_catalog_associations_sample_e107_r2022-11-29.tsv b/tests/gentropy/data_samples/gwas_catalog_associations.tsv
similarity index 100%
rename from tests/gentropy/data_samples/gwas_catalog_associations_sample_e107_r2022-11-29.tsv
rename to tests/gentropy/data_samples/gwas_catalog_associations.tsv
diff --git a/tests/gentropy/data_samples/gwas_catalog_studies.tsv b/tests/gentropy/data_samples/gwas_catalog_studies.tsv
new file mode 100644
index 000000000..aca9ed666
--- /dev/null
+++ b/tests/gentropy/data_samples/gwas_catalog_studies.tsv
@@ -0,0 +1,20 @@
+DATE ADDED TO CATALOG	PUBMED ID	FIRST AUTHOR	DATE	JOURNAL	LINK	STUDY	DISEASE/TRAIT	INITIAL SAMPLE SIZE	REPLICATION SAMPLE SIZE	PLATFORM [SNPS PASSING QC]	ASSOCIATION COUNT	MAPPED_TRAIT	MAPPED_TRAIT_URI	STUDY ACCESSION	GENOTYPING TECHNOLOGY	SUBMISSION DATE	STATISTICAL MODEL	BACKGROUND TRAIT	MAPPED BACKGROUND TRAIT	MAPPED BACKGROUND TRAIT URI	COHORT	FULL SUMMARY STATISTICS	SUMMARY STATS LOCATION
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints	12,863 European ancestry male cases, 19,521 European ancestry female cases, 40,776 European ancestry male controls, 39,846 European ancestry female controls	1,983 Icelandic ancestry male cases, 1,791 Icelandic ancestry female cases, 2,064 Icelandic ancestry male controls, 1,727 Icelandic ancestry female controls	Affymetrix [at least 12428592] (imputed)	2	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST004695	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST004001-GCST005000/GCST004695
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Sleep duration	112,411 European ancestry male individuals	NA	Affymetrix [at least 12428592] (imputed)	3	sleep duration	http://www.ebi.ac.uk/efo/EFO_0005271	GCST004694	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints (sex interaction)	12,863 European ancestry male cases, 19,521 European ancestry female cases, 40,776 European ancestry male controls, 39,846 European ancestry female controls	NA	Affymetrix [at least 12428592] (imputed)	0	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST004700	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints (continuous)	12,863 European ancestry male cases, 19,521 European ancestry female cases, 40,776 European ancestry male controls, 39,846 European ancestry female controls	NA	Affymetrix [at least 12428592] (imputed)	1	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST004701	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints (dichotomous)	32,384 European ancestry cases,  27,128 European ancestry controls	NA	Affymetrix [at least 12428592] (imputed)	1	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST004702	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Chronotype	101,185 European ancestry individuals	NA	Affymetrix [at least 12428592] (imputed)	9	circadian rhythm	http://www.ebi.ac.uk/efo/EFO_0004354	GCST004696	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Ease of getting up in the morning	112,866 European ancestry individuals	NA	Affymetrix [at least 12428592] (imputed)	5	chronotype measurement	http://www.ebi.ac.uk/efo/EFO_0008328	GCST004697	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Daytime nap	113,054 European ancestry cases and controls	NA	Affymetrix [at least 12428592] (imputed)	4	daytime rest measurement	http://www.ebi.ac.uk/efo/EFO_0007828	GCST004693	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Snoring	105,377 European ancestry cases and controls	NA	Affymetrix [at least 12428592] (imputed)	1	snoring measurement	http://www.ebi.ac.uk/efo/EFO_0008341	GCST004698	Genome-wide genotyping array							no	NA
+2017-09-11	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Daytime sleepiness	112,717 European ancestry cases and controls	NA	Affymetrix [at least 12428592] (imputed)	6	excessive daytime sleepiness measurement	http://www.ebi.ac.uk/efo/EFO_0007875	GCST004699	Genome-wide genotyping array							no	NA
+2018-11-02	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints	19,521 European ancestry female cases, 39,846 European ancestry female controls	1,983 Icelandic ancestry male cases, 1,791 Icelandic ancestry female cases, 2,064 Icelandic ancestry male controls, 1,727 Icelandic ancestry female controls	Affymetrix [at least 12428592] (imputed)	1	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST006487	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST006001-GCST007000/GCST006487
+2018-11-02	28604731	Hammerschlag AR	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604731	Genome-wide association analysis of insomnia complaints identifies risk genes and genetic overlap with psychiatric and metabolic traits.	Insomnia complaints	12,863 European ancestry male cases, 40,776 European ancestry male controls	1,983 Icelandic ancestry male cases, 1,791 Icelandic ancestry female cases, 2,064 Icelandic ancestry male controls, 1,727 Icelandic ancestry female controls	Affymetrix [at least 12428592] (imputed)	2	insomnia	http://www.ebi.ac.uk/efo/EFO_0004698	GCST006488	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST006001-GCST007000/GCST006488
+2017-09-14	28610988	Kerr KF	2017-06-10	Heart Rhythm	www.ncbi.nlm.nih.gov/pubmed/28610988	Genome-wide association study of heart rate and its variability in Hispanic/Latino cohorts.	Heart rate	13,184 Hispanic/Latino individuals	7,073 European ancestry individuals, 4,771 African American individuals	Affymetrix, Illumina [16967914] (imputed)	2	heart rate	http://www.ebi.ac.uk/efo/EFO_0004326	GCST004715	Genome-wide genotyping array							no	NA
+2017-09-14	28610988	Kerr KF	2017-06-10	Heart Rhythm	www.ncbi.nlm.nih.gov/pubmed/28610988	Genome-wide association study of heart rate and its variability in Hispanic/Latino cohorts.	Heart rate variability traits (RMSSD)	13,767 Hispanic/Latino individuals	4,730 European ancestry individuals, 2,908 African American individuals	Affymetrix, Illumina [17209892] (imputed)	2	heart rate variability measurement	http://www.ebi.ac.uk/efo/EFO_0008003	GCST004716	Genome-wide genotyping array							no	NA
+2017-09-14	28610988	Kerr KF	2017-06-10	Heart Rhythm	www.ncbi.nlm.nih.gov/pubmed/28610988	Genome-wide association study of heart rate and its variability in Hispanic/Latino cohorts.	Heart rate variability traits (SDNN)	13,184 Hispanic/Latino individuals	7,073 European ancestry individuals, 2,908 African American individuals	Affymetrix, Illumina [17209740] (imputed)	3	heart rate variability measurement	http://www.ebi.ac.uk/efo/EFO_0008003	GCST004714	Genome-wide genotyping array							no	NA
+2017-09-18	28604730	McKay JD	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604730	Large-scale association analysis identifies new lung cancer susceptibility loci and heterogeneity in genetic susceptibility across histological subtypes.	Lung cancer	29,266 European ancestry cases, 56,450 European ancestry controls	NA	Illumina [10439017] (imputed)	135	lung carcinoma	http://www.ebi.ac.uk/efo/EFO_0001071	GCST004748	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST004001-GCST005000/GCST004748
+2017-09-18	28604730	McKay JD	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604730	Large-scale association analysis identifies new lung cancer susceptibility loci and heterogeneity in genetic susceptibility across histological subtypes.	Lung adenocarcinoma	11,273 European ancestry cases,  55,483 European ancestry controls	NA	Illumina [10439017] (imputed)	79	lung adenocarcinoma	http://www.ebi.ac.uk/efo/EFO_0000571	GCST004744	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST004001-GCST005000/GCST004744
+2017-09-18	28604730	McKay JD	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604730	Large-scale association analysis identifies new lung cancer susceptibility loci and heterogeneity in genetic susceptibility across histological subtypes.	Squamous cell lung carcinoma	7,426 European ancestry cases, 55,627 European ancestry controls	NA	Illumina [10439017] (imputed)	101	squamous cell lung carcinoma	http://www.ebi.ac.uk/efo/EFO_0000708	GCST004750	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST004001-GCST005000/GCST004750
+2017-09-18	28604730	McKay JD	2017-06-12	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/28604730	Large-scale association analysis identifies new lung cancer susceptibility loci and heterogeneity in genetic susceptibility across histological subtypes.	Small cell lung carcinoma	2,664 European ancestry cases,  21,444 European ancestry controls	NA	Illumina [10439017] (imputed)	50	small cell lung carcinoma	http://www.ebi.ac.uk/efo/EFO_0000702	GCST004746	Genome-wide genotyping array							yes	http://ftp.ebi.ac.uk/pub/databases/gwas/summary_statistics/GCST004001-GCST005000/GCST004746
diff --git a/tests/gentropy/data_samples/gwas_catalog_studies_sample-r2022-11-29.tsv b/tests/gentropy/data_samples/gwas_catalog_studies_sample-r2022-11-29.tsv
deleted file mode 100644
index 7db8f5302..000000000
--- a/tests/gentropy/data_samples/gwas_catalog_studies_sample-r2022-11-29.tsv
+++ /dev/null
@@ -1,20 +0,0 @@
-DATE ADDED TO CATALOG	PUBMED ID	FIRST AUTHOR	DATE	JOURNAL	LINK	STUDY	DISEASE/TRAIT	INITIAL SAMPLE SIZE	REPLICATION SAMPLE SIZE	PLATFORM [SNPS PASSING QC]	ASSOCIATION COUNT	MAPPED_TRAIT	MAPPED_TRAIT_URI	STUDY ACCESSION	GENOTYPING TECHNOLOGY	SUMMARY STATS LOCATION	SUBMISSION DATE	STATISTICAL MODEL	BACKGROUND TRAIT	MAPPED BACKGROUND TRAIT	MAPPED BACKGROUND TRAIT URI
-2019-09-11	26546613	Gutierrez-Achury J	2016-01-01	Hum Mol Genet	www.ncbi.nlm.nih.gov/pubmed/26546613	Functional implications of disease-specific variants in loci jointly associated with coeliac disease and rheumatoid arthritis.	Celiac disease and Rheumatoid arthritis	371 South Asian ancestry celiac disease cases, 3,138 European ancestry celiac disease cases,  4,418 European ancestry rheumatoid arthritis cases,  509 South Asian ancestry celiac disease controls, 2,473 European ancestry celiac disease controls, 3,300 European ancestry rheumatoid arthritis controls, 8,872 celiac disease cases, 9,401 rheumatoid arthritis cases, 4,845 celiac disease controls, 9,627 rheumatoid arthritis controls	NA	Illumina [109572]	24	rheumatoid arthritis, celiac disease	http://www.ebi.ac.uk/efo/EFO_0000685, http://www.ebi.ac.uk/efo/EFO_0001060	GCST008644	Targeted genotyping array [Immunochip]
-2017-05-12	27911795	Schumann G	2016-11-28	Proc Natl Acad Sci U S A	www.ncbi.nlm.nih.gov/pubmed/27911795	KLB is associated with alcohol drinking, and its gene product β-Klotho is necessary for FGF21 regulation of alcohol preference.	Alcohol consumption	up to 70,460 European ancestry drinker individuals	up to 35,438 European ancestry drinker individuals	Affymetrix, Illumina, Perlegen [at least 316407] (imputed)	3	alcohol consumption measurement	http://www.ebi.ac.uk/efo/EFO_0007878	GCST004026	Genome-wide genotyping array
-2017-05-12	27911795	Schumann G	2016-11-28	Proc Natl Acad Sci U S A	www.ncbi.nlm.nih.gov/pubmed/27911795	KLB is associated with alcohol drinking, and its gene product β-Klotho is necessary for FGF21 regulation of alcohol preference.	Alcohol consumption (heavy vs. light/non-drinkers)	up to 74,711 European ancestry heavy and light/non-drinker individuals	up to 31,021 European ancestry heavy and light/non-drinker individuals	Affymetrix, Illumina, Perlegen [at least 316407] (imputed)	2	alcohol consumption measurement	http://www.ebi.ac.uk/efo/EFO_0007878	GCST004027	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of organochlorine pesticides	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	Affymetrix [629686]	2	gestational serum measurement, organochlorine pesticide measurement	http://www.ebi.ac.uk/efo/EFO_0007964, http://www.ebi.ac.uk/efo/EFO_0007960	GCST004281	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of PCBs (fetal genetic effect)	764 fetuses	NA	Affymetrix [622716]	11	polychlorinated biphenyls measurement, gestational serum measurement, fetal genotype effect measurement	http://www.ebi.ac.uk/efo/EFO_0007042, http://www.ebi.ac.uk/efo/EFO_0007964, http://www.ebi.ac.uk/efo/EFO_0007959	GCST004284	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of PBDEs	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	Affymetrix [629686]	9	polybrominated biphenyl measurement, gestational serum measurement, polybrominated diphenyl ether measurement	http://www.ebi.ac.uk/efo/EFO_0007961, http://www.ebi.ac.uk/efo/EFO_0007964, http://www.ebi.ac.uk/efo/EFO_0007962	GCST004285	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of PBDEs (fetal genetic effect)	764 fetuses	NA	Affymetrix [629686]	11	polybrominated biphenyl measurement, gestational serum measurement, fetal genotype effect measurement, polybrominated diphenyl ether measurement	http://www.ebi.ac.uk/efo/EFO_0007961, http://www.ebi.ac.uk/efo/EFO_0007964, http://www.ebi.ac.uk/efo/EFO_0007959, http://www.ebi.ac.uk/efo/EFO_0007962	GCST004286	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of organochlorine pesticides (fetal genetic effect)	764 fetuses	NA	Affymetrix [629686]	0	gestational serum measurement, fetal genotype effect measurement, organochlorine pesticide measurement	http://www.ebi.ac.uk/efo/EFO_0007964, http://www.ebi.ac.uk/efo/EFO_0007959, http://www.ebi.ac.uk/efo/EFO_0007960	GCST004282	Genome-wide genotyping array
-2017-07-03	28235828	Traglia M	2017-04-03	G3 (Bethesda)	www.ncbi.nlm.nih.gov/pubmed/28235828	Independent Maternal and Fetal Genetic Effects on Midgestational Circulating Levels of Environmental Pollutants.	Midgestational circulating levels of PCBs	329 Hispanic mothers, 273 European ancestry mothers, 122 Asian ancestry mothers, 23 South Asian ancestry mothers, 21 African American mothers, 22 other ancestry mothers	NA	Affymetrix [629686]	25	polychlorinated biphenyls measurement, gestational serum measurement	http://www.ebi.ac.uk/efo/EFO_0007042, http://www.ebi.ac.uk/efo/EFO_0007964	GCST004283	Genome-wide genotyping array
-2016-09-12	26325155	Brehm JM	2015-09-01	Am J Respir Crit Care Med	www.ncbi.nlm.nih.gov/pubmed/26325155	A Genome-Wide Association Study of Post-bronchodilator Lung Function in Children with Asthma.	Post-bronchodilator lung function in asthma (FEV1)	447 Puerto Rican ancestry cases	568 European, black or Hispanic cases, 2,414 Hispanic cases	Illumina [NR]	0	pulmonary function measurement, forced expiratory volume, response to bronchodilator	http://www.ebi.ac.uk/efo/EFO_0003892, http://www.ebi.ac.uk/efo/EFO_0004314, http://purl.obolibrary.org/obo/GO_0097366	GCST003110	Genome-wide genotyping array					asthma	http://purl.obolibrary.org/obo/MONDO_0004979
-2016-09-12	26325155	Brehm JM	2015-09-01	Am J Respir Crit Care Med	www.ncbi.nlm.nih.gov/pubmed/26325155	A Genome-Wide Association Study of Post-bronchodilator Lung Function in Children with Asthma.	Post-bronchodilator lung function in asthma (FEV1/FVC)	447 Puerto Rican ancestry cases	568 European, black or Hispanic cases, 2,414 Hispanic cases	Illumina [NR]	0	pulmonary function measurement, response to bronchodilator, FEV/FEC ratio	http://www.ebi.ac.uk/efo/EFO_0003892, http://purl.obolibrary.org/obo/GO_0097366, http://www.ebi.ac.uk/efo/EFO_0004713	GCST003107	Genome-wide genotyping array					asthma	http://purl.obolibrary.org/obo/MONDO_0004979
-2016-07-27	26237429	Aminkeng F	2015-08-03	Nat Genet	www.ncbi.nlm.nih.gov/pubmed/26237429	A coding variant in RARG confers susceptibility to anthracycline-induced cardiotoxicity in childhood cancer.	Anthracycline-induced cardiotoxicity in childhood cancer	32 European ancestry cases with cardiotoxicity, 248 European ancestry cases without cardiotoxicity	22 European ancestry cases with cardiotoxicity, 74 European ancestry cases without cardiotoxicity, 2 African cases with cardiotoxicity, 9 African cases without cardiotoxicity, 5 Hispanic cases with cardiotoxicity, 18 Hispanic cases without cardiotoxicity, 8 East Asian cases with cardiotoxicity, 23 East Asian cases without cardiotoxicity, 4 Aboriginal Canadian cases with cardiotoxicity, 11 Aboriginal Canadian cases without cardiotoxicity	Illumina [657694]	2	cardiotoxicity, response to anthracycline-based chemotherapy	http://www.ebi.ac.uk/efo/EFO_1001482, http://www.ebi.ac.uk/efo/EFO_0005257	GCST003062	Genome-wide genotyping array					childhood cancer	http://www.ebi.ac.uk/efo/EFO_1000654
-2017-02-25	27387956	Murk W	2016-07-07	BMC Genet	www.ncbi.nlm.nih.gov/pubmed/27387956	Genome-wide search identifies a gene-gene interaction between 20p13 and 2q14 in asthma.	Asthma (SNP x SNP interaction)	802 European ancestry cases, 823 European ancestry controls	754 European ancestry cases, 57 European and unknown ancestry cases, 2,573 cases, 880 European ancestry controls, 68 European and unknown ancestry controls, 2,145 controls	Illumina [301547]	0	asthma	http://purl.obolibrary.org/obo/MONDO_0004979	GCST003682	Genome-wide genotyping array
-2016-12-09	27008869	Chen MM	2016-03-23	Hum Mol Genet	www.ncbi.nlm.nih.gov/pubmed/27008869	GWAS meta-analysis of 16 852 women identifies new susceptibility locus for endometrial cancer.	Endometrial cancer	4,907 European ancestry cases, 11,945 European ancestry controls	NA	Illumina [9486271] (imputed)	4	endometrial carcinoma	http://www.ebi.ac.uk/efo/EFO_1001512	GCST003436	Genome-wide genotyping array
-2016-12-01	27016271	Kornilov SA	2016-03-25	Pediatrics	www.ncbi.nlm.nih.gov/pubmed/27016271	Genome-Wide Association and Exome Sequencing Study of Language Disorder in an Isolated Population.	Developmental language disorder	149 isolated population cases, 210 isolated population controls	NA	Illumina [223580]	4	specific language impairment	http://www.ebi.ac.uk/efo/EFO_1001510	GCST003396	Genome-wide genotyping array
-2016-12-01	27016271	Kornilov SA	2016-03-25	Pediatrics	www.ncbi.nlm.nih.gov/pubmed/27016271	Genome-Wide Association and Exome Sequencing Study of Language Disorder in an Isolated Population.	Developmental language disorder (linguistic errors)	149 isolated population cases, 210 isolated population controls	NA	Illumina [223580]	9	linguistic error measurement, specific language impairment	http://www.ebi.ac.uk/efo/EFO_0007798, http://www.ebi.ac.uk/efo/EFO_1001510	GCST003397	Genome-wide genotyping array
-2016-12-01	27016271	Kornilov SA	2016-03-25	Pediatrics	www.ncbi.nlm.nih.gov/pubmed/27016271	Genome-Wide Association and Exome Sequencing Study of Language Disorder in an Isolated Population.	Developmental language disorder (syntactic complexity)	149 isolated population cases, 210 isolated population controls	NA	Illumina [223580]	3	syntactic complexity measurement, specific language impairment	http://www.ebi.ac.uk/efo/EFO_0007799, http://www.ebi.ac.uk/efo/EFO_1001510	GCST003398	Genome-wide genotyping array
-2016-12-13	27005419	Borne Y	2016-03-22	Hum Mol Genet	www.ncbi.nlm.nih.gov/pubmed/27005419	Genome wide association study identifies two loci associated with cadmium in erythrocytes among never-smokers.	Erythrocyte cadmium concentration	2,704 ever-smoker individuals, 1,728 never-smoker individuals	NA	Illumina [658884]	5	erythrocyte cadmium measurement	http://www.ebi.ac.uk/efo/EFO_0007807	GCST003449	Genome-wide genotyping array
-2016-12-13	27005419	Borne Y	2016-03-22	Hum Mol Genet	www.ncbi.nlm.nih.gov/pubmed/27005419	Genome wide association study identifies two loci associated with cadmium in erythrocytes among never-smokers.	Erythrocyte cadmium concentration in never smokers	1,728 individuals	NA	Illumina [658884]	7	erythrocyte cadmium measurement	http://www.ebi.ac.uk/efo/EFO_0007807	GCST003448	Genome-wide genotyping array
diff --git a/utils/update_GWAS_Catalog_data.sh b/utils/update_GWAS_Catalog_data.sh
index 1e380d30c..00ee44d8f 100755
--- a/utils/update_GWAS_Catalog_data.sh
+++ b/utils/update_GWAS_Catalog_data.sh
@@ -15,7 +15,7 @@ get_release_url(){
 
 # Function to get the Ensembl and EFO version which used to ground GWAS data:
 get_release_info(){
-    curl -s https://www.ebi.ac.uk/gwas/api/search/stats | jq -r '"\(.ensemblbuild) \(.efoversion)"'
+    curl -s "${1}" | jq -r '"\(.ensemblbuild) \(.efoversion)"'
 }
 
 logging(){
@@ -41,6 +41,18 @@ upload_file_to_gcp(){
     fi
 }
 
+fetch_from_ftp(){
+    URL=${1}
+    TARGET=${2}
+    wget -q ${URL} -O ${TARGET}
+    if [ $? -ne 0 ]; then
+        logging "Failed to fetch ${URL}"
+        return
+    else
+        logging "File ${TARGET} saved."
+    fi
+}
+
 # Resources:
 export BASE_URL=ftp://ftp.ebi.ac.uk/pub/databases/gwas
 export RELEASE_INFO_URL=https://www.ebi.ac.uk/gwas/api/search/stats
@@ -71,7 +83,7 @@ read YEAR MONTH DAY < <(get_release_url)
 logging "Most recent GWAS Catalog release: ${YEAR}/${MONTH}/${DAY}"
 
 # Capturing release metadata:
-read ENSEMBL EFO < <(get_release_info)
+read ENSEMBL EFO < <(get_release_info ${RELEASE_INFO_URL})
 logging "Genes were mapped to v${ENSEMBL} Ensembl release."
 logging "Diseases were mapped to ${EFO} EFO release."
 
@@ -80,26 +92,19 @@ RELEASE_URL=${BASE_URL}/releases/${YEAR}/${MONTH}/${DAY}
 logging "Datafiles are fetching from ${RELEASE_URL}"
 
 # Fetching files while assigning properly dated and annotated names:
-wget -q ${RELEASE_URL}/gwas-catalog-associations_ontology-annotated.tsv -O ${ASSOCIATION_FILE}
-logging "File ${ASSOCIATION_FILE} saved."
+fetch_from_ftp ${RELEASE_URL}/gwas-catalog-associations_ontology-annotated.tsv ${ASSOCIATION_FILE}
 
-wget -q ${RELEASE_URL}/gwas-catalog-download-studies-v1.0.3.txt -O ${PUBLISHED_STUDIES_FILE}
-logging "File ${PUBLISHED_STUDIES_FILE} saved."
+fetch_from_ftp ${RELEASE_URL}/gwas-catalog-download-studies-v1.0.3.1.txt ${PUBLISHED_STUDIES_FILE}
 
-wget -q ${RELEASE_URL}/gwas-catalog-unpublished-studies-v1.0.3.tsv -O ${UNPUBLISHED_STUDIES_FILE}
-logging "File ${UNPUBLISHED_STUDIES_FILE} saved."
+fetch_from_ftp ${RELEASE_URL}/gwas-catalog-unpublished-studies-v1.0.3.1.tsv ${UNPUBLISHED_STUDIES_FILE}
 
-wget -q ${RELEASE_URL}/gwas-catalog-download-ancestries-v1.0.3.txt -O ${PUBLISHED_ANCESTRIES_FILE}
-logging "File ${PUBLISHED_ANCESTRIES_FILE} saved."
+fetch_from_ftp ${RELEASE_URL}/gwas-catalog-download-ancestries-v1.0.3.1.txt ${PUBLISHED_ANCESTRIES_FILE}
 
-wget -q ${RELEASE_URL}/gwas-catalog-unpublished-ancestries-v1.0.3.tsv -O ${UNPUBLISHED_ANCESTRIES_FILE}
-logging "File ${UNPUBLISHED_ANCESTRIES_FILE} saved."
+fetch_from_ftp ${RELEASE_URL}/gwas-catalog-unpublished-ancestries-v1.0.3.1.tsv ${UNPUBLISHED_ANCESTRIES_FILE}
 
-wget -q ${BASE_URL}/summary_statistics/harmonised_list.txt -O ${HARMONISED_LIST_FILE}
-logging "File ${HARMONISED_LIST_FILE} saved."
+fetch_from_ftp ${BASE_URL}/summary_statistics/harmonised_list.txt ${HARMONISED_LIST_FILE}
 
-wget -q ${GWAS_CATALOG_STUDY_CURATION_URL} -O ${GWAS_CATALOG_STUDY_CURATION_FILE}
-logging "In-house GWAS Catalog study curation file fetched from GitHub."
+fetch_from_ftp ${GWAS_CATALOG_STUDY_CURATION_URL} ${GWAS_CATALOG_STUDY_CURATION_FILE}
 
 logging "Copying files to GCP..."