1. Division of Trauma Surgery, Faculty of Medical Sciences, University of Campinas (UNICAMP), 13083-887 Campinas, SP, Brazil
2. Division of Urology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Rua Tessália Vieira de Camargo 126, Cidade Universitária “Zeferino Vaz,” 13083-887 Campinas, SP, Brazil
3. Faculty of Medicine, Pontifical Catholic University of Campinas (PUC), 13083-887 Campinas, SP, Brazil
4. Department of Surgery, Faculty of Medical Sciences, University of Campinas (UNICAMP), 13083-887 Campinas, SP, Brazil