Name	Info	Provider	Link
Vitamin A	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitamina.html
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-HLA-B-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/non-CPTAC-3321