title: Lactose-barium small bowel study. Efficacy as a screening method.
mesh_terms: D001466:Barium Sulfate; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D007785:Lactose / Q000008:administration & dosage; D007787:Lactose Intolerance / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013679:Technology, Radiologic
chemical_list: D001466:Barium Sulfate; D007785:Lactose