Reducing the heterogeneity in hepatocellular carcinoma. A cluster analysis based on clinical variables in patients treated at a quaternary care hospital S. Niño-Ramírez; D. Jaramillo-Arroyave; O. Ardila; L.G. Guevara-Casallas;

Clinical utility of the solid meal test during high-resolution esophageal manometry. A study in a Latin American population K.R. García-Zermeño; J. Argüero; M. Amieva-Balmori; O. Rodríguez-Aguilera; A. Martínez-Conejo; M. Marcolongo; J.M. Remes-Troche;

New tools for the grading and scoring of gastro-esophageal reflux disease S. Siboni; M. Sozzi; P. Visaggi; R. De Maron; E. Asti;