Name	Info	Provider	Link
	free resource	Medknow Publications and Media Pvt Ltd	http://www.jpalliativecare.com/article.asp?issn=0973-1075;year=2017;volume=23;issue=3;spage=237;epage=246;aulast=Rao
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28827925/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28827925
	free resource	scite Smart Citations	https://scite.ai/reports/28827925