title: [Search for the etiology in chronic diarrhea. Not every colitis is imaged with the endoscope].
authors.forename: P
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D002908:Chronic Disease; D003092:Colitis / Q000175:diagnosis* / Q000209:etiology; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000209:etiology*; D016099:Endoscopy, Gastrointestinal; D006801:Humans