Gastrointestinal manifestations and associated health outcomes of COVID-19: a brazilian experience from the largest south american public hospital - Moura, Diogo Turiani Hourneaux de; Proenca, Igor Mendonca; Mccarty, Thomas R; Sagae, Vitor Massaro Takamatsu; Ribeiro, Igor Braga; Oliveira, Guilherme Henrique Peixoto de; Souza, Gabriel Mayo Vieira de; Hirsch, Bruno Salomao; Carrilho, Flair José; Cecconello, Ivan (Clinics, 2020)