title: Caution in upper gastrointestinal X-ray study in constipated parkinsonian patients.
authors.forename: S
authors.initials: S
authors.lastname: Umeki
mesh_terms: D000368:Aged; D001466:Barium Sulfate / Q000009:adverse effects*; D003248:Constipation / Q000000981:diagnostic imaging*; D004064:Digestive System / Q000000981:diagnostic imaging*; D006801:Humans; D007415:Intestinal Obstruction / Q000139:chemically induced*; D008297:Male; D010300:Parkinson Disease / Q000150:complications*; D011859:Radiography
chemical_list: D001466:Barium Sulfate