International Brazilian Journal of Urology, Vol 42, Iss 1, Pp 146-153 (2016) International braz j urol, Volume: 42, Issue: 1, Pages: 146-153, Published: FEB 2016 International Brazilian Journal of Urology : official journal of the Brazilian Society of Urology International braz j urol v.42 n.1 2016 International Braz J Urol Sociedade Brasileira de Urologia (SBU) instacron:SBU