1. Escola Paulista de Medicina, Universidade Federal de São Paulo; Post-Graduation Program Emergency Medicine and Evidence Based Medicine of the Federal University of São Paulo (UNIFESP); Rua Borges Lagoa 564 cj 64 Vl. Clementino São Paulo Brazil 04038-000
2. Centro Universitário de Volta Redonda; Medicine School; Volta Redonda Brazil
3. Escola Paulista de Medicina, Universidade Federal de São Paulo; Department of Gastroenterological Surgery; Rua Edison 278, Apto 61 Campo Belo São Paulo São Paulo Brazil 04618-031
4. Universidade Federal de São Paulo; Emergency Medicine and Evidence Based Medicine; Rua Borges Lagoa 564 cj 64 Vl. Clementino São Paulo São Paulo Brazil 04038-000