Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://www.jurology.com/doi/10.1016/s0022-5347(17)50729-6?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0022-5347(17)50729-6
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=6423841.ui