Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1570-1794&volume=20&issue=5&spage=546&aulast=Rodríguez Enciso
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-AKR1B1-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1496
	subscription/membership/fee required	Bentham Science Publishers Ltd.	https://www.eurekaselect.com/208194/article