Results of the national registry of patients diagnosed with inflammatory bowel disease candidates for bariatric surgery (ReNacEIBar) Manuel Ferrer-Márquez; M. Dolores Frutos Bernal; Amador García Ruiz de Gordejuela; Manuel García-Redondo; Mónica Millán; Fátima Sabench Pereferrer; Jordi Tarascó Palomares;