1 Department of Gastroenterology, Clinical Gastroenterology and Clinical Hepatology of Hospital das Clinicas, University of São Paulo School of Medicine , São Paulo , Brazil ; Laboratory of Immunopathology of Schistosomiasis, Institute of Tropical Medicine, University of São Paulo , São Paulo , Brazil ; Laboratory of Tropical Gastroenterology and Hepatology, Institute of Tropical Medicine , São Paulo , Brazil.
2 Laboratory of Immunopathology of Schistosomiasis, Institute of Tropical Medicine, University of São Paulo , São Paulo , Brazil ; Laboratory of Tropical Gastroenterology and Hepatology, Institute of Tropical Medicine , São Paulo , Brazil.
3 Department of Gastroenterology, Clinical Gastroenterology and Clinical Hepatology of Hospital das Clinicas, University of São Paulo School of Medicine , São Paulo , Brazil.