Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0032-5791(19)31759-6
Dietary Supplements	free resource	MedlinePlus Health Information	https://medlineplus.gov/dietarysupplements.html
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1496
	free resource	scite Smart Citations	https://scite.ai/reports/27030692
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/ps/article-lookup/doi/10.3382/ps/pew105