Location, morphology and invasiveness of lateral spreading tumors in the colorectum differ between two large cohorts from an eastern and western country Carlos Guarner-Argente; Hiroaki Ikematsu; Shozo Osera; Maria Fraile; Berta Ibañez; Carlos Marra-López; Carla Jerusalén-Gargallo; Pedro A. Alonso Aguirre; David Martinez-Ares; Santiago Soto; Felipe Ramos Zabala; Marco Antonio Alvarez-Gonzalez; Joaquin Rodriguez Sánchez; Fernando Múgica; Oscar Nogales Rincon; Alberto Herreros de Tejada; Eduardo Redondo-Cerezo; Juan Martínez-Cara; Leopoldo López-Rosés; Manuel Rodriguez-Tellez; Orlando Garcia-Bosch; Joaquín de la Peña; María Pellisé; Liseth Rivero-Sanchez; Esteve Saperas; Francisco Pérez-Roldán; Bartolome Lopez Viedma; Jesús M. González-Santiago; Alberto Álvarez Delgado; Carol Cobian; Remedios Pardeiro; Eduardo Valdivielso Cortázar; Juan Colan-Hernandez; Jordi Gordillo; Kazuhiro Kaneko; Eduardo Albéniz;

Safety and efficacy of endoscopic vacuum therapy for the treatment of perforations and anastomotic leaks of the upper gastrointestinal tract Oriol Sendino; Carme Loras; Alfredo Mata; Dulce Momblán; Xavier Andujar; Marta Cruz; Andrés Cárdenas; Iris Marquez; Hugo Uchima; H. Cordova; AM de Lacy; Jorge Espinós;

Endocytoscopy of muscularis propria in rapidly evolving achalasia and recurrence of post-Heller achalasia Hugo Uchima; Raquel Muñoz-González; Íngrid Marín; Noemí Caballero; Claudia Cepero; Ignacio Iborra; Juan Colán-Hernández; Edgar Castillo; Vicente Moreno;