Orellana F, Onetto C, Balbontín P, Videla D, Manriquez L, Plass R, Araya R, Sepúlveda R, Saenz R, Ríos H
Department of Surgery, Hospital Militar de Santiago, Santiago, Chile.
Endoscopy. 2011;43 Suppl 2 UCTN:E71-2. doi: 10.1055/s-0030-1256041. Epub 2011 Feb 21.