Accuracy of the 'ANTIPOT. 14 C'-urea breath test for the diagnosis of Helicobacter pylori - Gomes, Ana Thereza Britto; Coelho, Luciano Kowalsky; Secaf, Marie; Modena, José Luiz Pimenta; Troncon, Luiz Ernesto de Almeida; Oliveira, Ricardo Brandt de (Sao Paulo Medical Journal, 2002)