Name	Info	Provider	Link
Minerals	free resource	MedlinePlus Health Information	https://medlineplus.gov/minerals.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27016100/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27016100
	free resource	scite Smart Citations	https://scite.ai/reports/27016100
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/pcp/article-lookup/doi/10.1093/pcp/pcw056