The challenge of quantifying screening colonoscopy quality: Development and psychometric properties of the Colonoscopy Quality Score instrument R. Sáenz-Fuenzalida; A. Riquelme-Pérez; L.A. Díaz-Piga; X. García-Rocha; E. Fuentes-López; J. Arnold-Álvarez; L. Caro; A. Tchekmedyian; I. Orellana-Narváez; R. Jover-Martínez;

Serrated polyps of the colon and rectum: a concise review R. Monreal-Robles; J.O. Jáquez-Quintana; D.E. Benavides-Salgado; J.A. González-González;

Colorectal adenocarcinoma in children and adolescents R. Bigliardi; M. Morici; G. Messere; G. Ortiz; J. Fernandez; A. Varela; J. Vidal; F. Diaz; J. Salas; M.C. Riccheri;