title: Patients' emotional responses to barium X-rays.
mesh_terms: D001007:Anxiety; D001466:Barium Sulfate; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D010353:Patient Education as Topic; D011859:Radiography
chemical_list: D001466:Barium Sulfate