Name	Info	Provider	Link
	free resource	MDPI	https://www.mdpi.com/resolver?pii=nu8110675
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/27792161/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27792161
	free resource	scite Smart Citations	https://scite.ai/reports/27792161