Name	Info	Provider	Link
Vitamin D	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitamind.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=26888893.ui
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-68
Full text from	free resource	CORE	https://core.ac.uk/reader/189996181?utm_source=linkout
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:26888893
	free resource	scite Smart Citations	https://scite.ai/reports/26888893
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/clinchem/article-lookup/doi/10.1373/clinchem.2015.251538