Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=24493147.ui
	free resource	scite Smart Citations	https://scite.ai/reports/24493147
	subscription/membership/fee required	Silverchair Information Systems	https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/jamainternmed.2013.13768