Recommendations on the management of severe obesity in patients with inflammatory bowel disease of the Spanish Group on Crohn¿s Disease and Ulcerative Colitis (GETECCU), Spanish Society of Obesity (SEEDO), Spanish Association of Surgery (AEC) and Spanish Society of Digestive Endoscopy (SEED) Eugeni Domènech; Andreea Ciudin; José María Balibrea; Eduard Espinet-Coll; Fiorella Cañete; Lilliam Flores; Manuel Ferrer-Márquez; Román Turró; Alejandro Hernández-Camba; Yamile Zabana; Ana Gutiérrez;

Incidence, and natural history of inflammatory bowel disease in Castilla y León:Prospective and multicenter epidemiological study Rosa María Sáiz-Chumillas; Jesús Barrio; Luis Fernández-Salazar; Lara Arias; Mónica Sierra Ausín; Concepción Piñero; Ana Fuentes Coronel; Laura Mata; Mónica Vásquez; Ana Carbajo; Noelia Alcaide; Noelia Cano; Aejandro Nuñez; Paola Fradejas; Mercedes Ibáñez; Luis Hernández; Beatriz Sicilia;

Duration of smoking cessation in patients with inflammatory bowel disease Carlos González-Muñoza; Cristina Gely; Jordi Gordillo; Federico Bertoletti; Antonio Giordano; Alberto López-Faba; Esther García-Planella;