Predictive pre-surgical factors for failure of sleeve gastrectomy as an obesity surgery Ibabe Villalabeitia Ateca; Aingueru Sarriugarte Lasarte; Borja Santos Zorrozua; Oihane Gutiérrez Grijalba; Patricia Mifsut Porcel; Gaizka Errazti Olartekoetxea;

Rare presentation of a large desmoid tumor after surgery for Meckel¿s diverticulum Olatz Ocerin Alganza; Christian Pérez González; María Nagore Arana de la Torre; José María García González;