Name	Info	Provider	Link
Vitamin C	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitaminc.html
	subscription/membership/fee required	Minerva Medica	http://www.minervamedica.it/index2.t?show=R34Y2009N03A0222
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-NT5E-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/non-CPTAC-1104