Clinical and epidemiological characteristics of Helicobacter pylori infection among patients in specialty outpatient clinics at Faculdade de Medicina ABC

by Ethel Zimberg Chehter, Fabio Luiz Maximiano, Leonardo Fernando Ferrari Nogueira, Fernando Antônio Blandi, Ricardo Eugênio Mariani Burdelis, Maurício Fullep Ferreira Xavier, Fernando Fonseca, Wilson Roberto Catapani