title: [Functional gastrointestinal disorders: nutrition tips instead of medication].
authors.forename: Peter
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D003113:Colonoscopy; D006801:Humans; D043183:Irritable Bowel Syndrome / Q000175:diagnosis / Q000178:diet therapy / Q000503:physiopathology / Q000523:psychology