Name	Info	Provider	Link
	free resource	Medknow Publications and Media Pvt Ltd	http://www.jcnonweb.com/article.asp?issn=2249-4847;year=2012;volume=1;issue=4;spage=171;epage=175;aulast=Yaseen
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=24027721.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24027721/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/24027721