Clinical innaparent form new concept on the chronic stage of chagas' disease
Joaquim Prado Pinto de Moraes Filho T A Bombonatti; W N Felix; A C P Barreto; S Magalhaes; F Pileggi; H W Pinotti; A Bettarello; World Congress on Gastroenterology (8. 1986 São Paulo); World Congress on Digestive Endoscopy (6. 1986 São Paulo); World Congress on Coloproctology (3. 1986 São Paulo)