title: Digestive dilemmas.
authors.forename: P K
authors.initials: PK
authors.lastname: Yen
mesh_terms: D000368:Aged; D004032:Diet / Q000009:adverse effects*; D005767:Gastrointestinal Diseases / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D010353:Patient Education as Topic