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;

Excision of a large adenovillous lesion (four quadrants) with peritoneal perforation via Transanal Endoscopic Operation (TEO). Step-by-step surgical strategy Xavier Serra-Aracil; Jesus Badia-Closa;

Local resection in rectal cancer: When, who and how? Jesus Badia-Closa; Juan Pablo Campana; Gustavo Leandro Rossi; Xavier Serra-Aracil;