Combined endoscopic and laparoscopic surgery for the treatment of complex benign colonic polyps (CELS): Observational study Xavier Serra-Aracil; Esther Gil-Barrionuevo; Eva Martinez; Laura Mora-López; Anna Pallisera-Lloveras; Sheila Serra-Pla; Valenti Puig-Divi; Salvador Navarro-Soto;

How to start and develop a multicenter, prospective, randomized, controlled trial Xavier Serra-Aracil; Mireia Pascua-Sol; Jesus Badia-Closa; Salvador Navarro-Soto;

Need for a targeted perioperative antibiotic treatment protocol for patients with preoperative biliary drainage undergoing pancreaticoduodenectomy Judith Camps-Lasa; María Isabel García-Domingo; Eric Herrero Fonollosa; María Luisa Galaviz Sosa; María Galofré Recasens; Aurora Rodríguez Campos; Xavier Serra-Aracil; Esteban Cugat Andorrá;