Name	Info	Provider	Link
	subscription/membership/fee required	American Psychological Association	http://content.apa.org/journals/pag/15/3/417
Older Adult Health	free resource	MedlinePlus Health Information	https://medlineplus.gov/olderadulthealth.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=11014706.ui
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:11014706