Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/TJO-5-198
	free resource	Medknow Publications and Media Pvt Ltd	http://www.e-tjo.org/article.asp?issn=2211-5056;year=2015;volume=5;issue=4;spage=198;epage=201;aulast=Chou
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29018700.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29018700/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29018700
	free resource	scite Smart Citations	https://scite.ai/reports/29018700