1. Escola Paulista de Medicina, Universidade Federal de São Paulo; Department of Gastroenterological Surgery; São Paulo São Paulo Brazil
2. Universidade do Estado do Pará; Department of Public Health; Travessa Perebebuí, 2623 Belém Pará Brazil 66087-670
3. Coventry University; Centre for Technology Enabled Health Research (CTEHR); Priory Street Coventry UK CV1 5FB
4. Hospital Municipal Dr. Munir Rafful; Extension, Research, Teaching Unit - UEPE; Avenida Jaraguá 1020 Volta Redonda, RJ Sao Paolo Brazil 2727130
5. Universidade de São Paulo; Faculty of Medicine; Rua das Figueiras, no.550, apto 134 Bairro Jardim, Santo Andre Sao Paulo SP Brazil 09080-300
6. Faculdade de Medicina do ABC; Avenida Lauro Gomes 2000 Santo Andre Sao Paulo Brazil 09060-870