| Authors: |
Facanali MR; Department of Gastroenterology of Hospital das Clínicas of University of São Paulo Medical School, São Paulo, São Paulo, Brazil., Bortolozzo Graciolli Facanali C; Department of Gastroenterology of Hospital das Clínicas of University of São Paulo Medical School, São Paulo, São Paulo, Brazil., Queiroz NSF; Department of Gastroenterology of Hospital das Clinicas of São Paulo, São Paulo, São Paulo, Brazil., Sobrado CW; Department of Gastroenterology of Hospital das Clinicas of São Paulo, São Paulo, São Paulo, Brazil., Nahas SC; Department of Gastroenterology of Hospital das Clinicas of São Paulo, São Paulo, São Paulo, Brazil., Safatle-Ribeiro AV; Department of Gastroenterology of Hospital das Clinicas of São Paulo, São Paulo, São Paulo, Brazil. |