1. Faculty of Medicine, São Paulo State University (UNESP), 18618-970 Botucatu, SP, Brazil
2. Graduate Program in General Basis of Surgery, Faculty of Medicine, São Paulo State University (UNESP), 18618-970 Botucatu, SP, Brazil
3. Municipal Institute of Higher Education, IMES-FAFICA, 55030-902 Catanduva, SP, Brazil
4. Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University (UNESP), 18618-970 Botucatu, SP, Brazil
5. Department of Pathology, Faculty of Medicine, São Paulo State University (UNESP), 18618-970 Botucatu, SP, Brazil