Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-021-01985-8
Vitamin D Deficiency	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitaminddeficiency.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34011341/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34011341
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/non-CPTAC-3321
	free resource	scite Smart Citations	https://scite.ai/reports/34011341