Does the mucins pattern reflect the origin of the adenocarcinoma in Barretts esophagus? - Szachonowicz, Sergio; Cecconello, Ivan; Ribeiro, Ulysses; Iriya, Kioshi; Ibrahim, Roberto El; Corbett, Carlos Eduardo Pereira; Ribeiro, Adriana Vaz Safatle; Rodrigues, Joaquim Jose Gama (Digestive Disease Week 2004, 2004)