1. Department of General Surgery, São Francisco University Hospital, 09190-370 Bragança Paulista, SP, Brazil
2. São Francisco University Medical School, 09190-370 Bragança Paulista, SP, Brazil
3. Division of Pathology, Specialized Center of Pathological Diagnosis (CEDAP), 09190-370 Bragança Paulista, SP, Brazil
4. Post-Graduate Program in Health Sciences, São Francisco University, Rua Rui Barbosa, 255 Apto. 32, 09190-370 Santo André, SP, Brazil