Luisa Leite Barros1, Bianca Pocopetz Facas1, Camila Cunha Gonzaga Lima1, Paula Emília Rivas Farez2, Alberto Queiroz Farias1
Departments of 1Gastroenterology and Hepatology and 2Pathology, Hospital das Clínicas, School of Medicine, University of São Paulo, São Paulo, SP, Brazil.