1. Postgraduate Program of Surgery, Center for Health SciencesFederal University of Pernambuco UFPERecife Brazil
2. Department of Urology, Hospital das ClínicasFederal University of Pernambuco UFPERecife Brazil
3. Department of UrologyInstituto de Medicina Integral Professor Fernando FigueiraRecife Brazil
4. Department of Surgery, Center for Health SciencesFederal University of Pernambuco UFPERecife Brazil