1 Gastroenterology Department, University of São Paulo Medical School, São Paulo 01246-903, Brazil; Center for Digestive Endoscopy, Surgery and Anatomy Department, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil. Electronic address: vobrunaldi@hcrp.usp.br.
2 Endovitta Institute, São Paulo, Brazil; ABC Faculty of Medicine, Santo Andre, Brazil; Gastroenterology and Surgery Department, Sri Aurobindo Medical College, Indore, India.