1. Department of Pediatrics, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
2. Department of Pediatrics, School of Medicine of University Presidente Antônio Carlos, Barbacena, Brazil
3. Division of Urology, Department of Surgery, State University of Feira de Santana, Feira de Santana, Brazil
4. Division of Urology, Department of Surgery, Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
5. Division of Urology, Department of Surgery, Hospital e Maternidade Therezinha de Jesus, School of Medical Science and Health of Juiz de Fora, Juiz de Fora, Brazil