title: Factors inducing relapse in inflammatory bowel disease.
mesh_terms: D003093:Colitis, Ulcerative / Q000209:etiology*; D003424:Crohn Disease / Q000209:etiology*; D006801:Humans; D012008:Recurrence; D012075:Remission, Spontaneous; D012141:Respiratory Tract Infections / Q000150:complications