Per-oral Endoscopic Myotomy for Achalasia: Lights and Shadows Francisco Schlottmann; Fernando A.M. Herbella; Marco G. Patti;

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

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