Name	Info	Provider	Link
Vitamin D Deficiency	free resource	MedlinePlus Health Information	https://medlineplus.gov/vitaminddeficiency.html
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pone.0175517
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28464004/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28464004
	free resource	scite Smart Citations	https://scite.ai/reports/28464004