Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1098-3015(10)60326-9
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19659703.ui
	free resource	Wiley	https://onlinelibrary.wiley.com/doi/10.1111/j.1524-4733.2009.00579.x
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S1098-3015(10)60326-9