1. Department of Obstetrics and Gynecology, Hospital General, Caxias do Sul, RS, Brazil
2. Department of Oncological Surgery, Hospital General, Caxias do Sul, RS, Brazil
3. Department of Medicine, University of Caxias do Sul, Caxias do Sul, RS, Brazil
4. Department of Urology, Hospital General, Caxias do Sul, RS, Brazil
5. Department of Anesthesiology, University of Caxias do Sul, Caxias do Sul, RS, Brazil
6. Department of Anesthesiology, CAN Anesthesiology Clinic, Caxias do Sul, RS, Brazil
7. Department of Obstetrics and Gynecology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil