title: Barium enema re acute appendicitis.
mesh_terms: D000208:Acute Disease; D001064:Appendicitis / Q000000981:diagnostic imaging*; D001466:Barium Sulfate; D002648:Child; D004733:Enema; D005188:False Negative Reactions; D006801:Humans; D008297:Male; D011859:Radiography
chemical_list: D001466:Barium Sulfate