Name	Info	Provider	Link
	subscription/membership/fee required	International Union of Crystallography	http://scripts.iucr.org/cgi-bin/paper?S1744309107033477
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/17671359/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/17671359
	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/CPTAC-43