International braz j urol v.42 n.6 2016 International Braz J Urol Sociedade Brasileira de Urologia (SBU) instacron:SBU International Brazilian Journal of Urology : official journal of the Brazilian Society of Urology International braz j urol, Volume: 42, Issue: 6, Pages: 1091-1098, Published: DEC 2016 International Brazilian Journal of Urology, Vol 42, Iss 6, Pp 1091-1098