Name	Info	Provider	Link
Vitamin D	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitamind.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32547536/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/32547536
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-EGFR-12
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-802
	free resource	Frontiers Media SA	https://doi.org/10.3389/fimmu.2020.00820