International braz j urol v.41 n.5 2015 International Braz J Urol Sociedade Brasileira de Urologia (SBU) instacron:SBU International braz j urol, Volume: 41, Issue: 5, Pages: 864-868, Published: OCT 2015 International Brazilian Journal of Urology : official journal of the Brazilian Society of Urology International Brazilian Journal of Urology, Vol 41, Iss 5, Pp 864-868 (2015)