Name	Info	Provider	Link
	free resource	Medknow Publications and Media Pvt Ltd	http://www.jiaps.com/article.asp?issn=0971-9261;year=2014;volume=19;issue=1;spage=44;epage=45;aulast=Singh
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=24604985.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24604985/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/24604985
	free resource	scite Smart Citations	https://scite.ai/reports/24604985