^SERIES=[required]
!Series_title = [required]
!Series_summary = [required]
!Series_overall_design = [required]
!Series_pubmed_id = [optional]
!Series_contributor = [optional; 1 per author; use 'firstname,lastname' or 'firstname,middleinitial,lastname]
!Series_web_link = [optional]
!Series_sample_id = [required; GEO Sample accession, e.g. "GSM10498"]
!Series_sample_id = [required; GEO Sample accession, e.g. "GSM10499"]
!Series_sample_id = [required; GEO Sample accession, e.g. "GSM10500"]
!Series_sample_id = [required; GEO Sample accession; keep adding these attributes until all GSMs in the study have been added]