Name	Info	Provider	Link
Skin Aging	free resource	MedlinePlus Health Information	https://medlineplus.gov/skinaging.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29299598.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29299598/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29299598
	free resource	scite Smart Citations	https://scite.ai/reports/29299598
	subscription/membership/fee required	Silverchair Information Systems	https://jamanetwork.com/journals/jamadermatology/fullarticle/10.1001/jamadermatol.2017.5142