Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0165-0327(18)31411-3
Dietary Supplements free resource MedlinePlus Health Information https://medlineplus.gov/dietarysupplements.html
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S0165-0327(18)31411-3