Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0022-3166(22)09692-4
Amino Acid Metabolism Disorders	free resource	MedlinePlus Health Information	https://medlineplus.gov/aminoacidmetabolismdisorders.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/CPTAC-165
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:18806117
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jn/article-lookup/doi/10.1093/jn/138.10.2016S