The evolution of the treatment of esophageal achalasia. Chronicle of a 35-year journey Marco G. Patti; Fernando A. Herbella;

The utility of intraoperative endoscopy in esophagogastric surgery Rocío Pérez Quintero; Marcos Bruna Esteban; Diego Juzgado de Lucas; Fernando Mingol Navarro;

Isolated duodenal transection after blunt duodenal trauma Nicolás H. Dreifuss; Cristian A. Angeramo; Francisco Schlottmann;