title: Images in clinical medicine. Barium impaction in the sigmoid colon.
authors.affiliation: Western Washington Medical Group, Everett 98201, USA.
authors.forename: W M
authors.initials: WM
authors.lastname: McDonnell
authors.forename: F
authors.initials: F
authors.lastname: Jung
mesh_terms: D001466:Barium Sulfate; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging*; D005244:Fecal Impaction / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate