Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1871-5281&volume=7&issue=3&spage=163&aulast=Guo
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-AKR1C1-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/non-CPTAC-1110