Ki-67 Antigen Overexpression Is Associated with the Metaplasia-Adenocarcinoma Sequence in Barrett's Esophagus

by Bernardo Silveira Volkweis, Richard Ricachenevsky Gurski, Luise Meurer, Guilherme Gonçalves Pretto, Guilherme da Silva Mazzini, Maria Isabel Edelweiss
Published 2012-01-01

Two-port laparoscopic appendectomy as transition to laparoendoscopic single site surgery

by José Gustavo Olijnyk, Guilherme Gonçalves Pretto, Omero Pereira da Costa Filho, Fernando Koboldt Machado, Sidney Raimundo Silva Chalub, Leandro Totti Cavazzola
Published 2014-01-01