Name	Info	Provider	Link
	free resource	Medknow Publications and Media Pvt Ltd	http://www.urologyannals.com/article.asp?issn=0974-7796;year=2019;volume=11;issue=4;spage=393;epage=398;aulast=Al
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=31649460.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31649460/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/31649460