Name	Info	Provider	Link
	free resource	Medknow Publications and Media Pvt Ltd	http://www.medgasres.com/article.asp?issn=2045-9912;year=2017;volume=7;issue=3;spage=181;epage=185;aulast=David
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29152211.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29152211/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29152211
	free resource	scite Smart Citations	https://scite.ai/reports/29152211