title: Classic signs of pneumoperitoneum on supine abdominal radiograph.
authors.forename: Aming Chor-Ming
authors.initials: AC
authors.lastname: Lin
authors.forename: Chin-Chu
authors.initials: CC
authors.lastname: Wu
authors.forename: Cheng-Tau
authors.initials: CT
authors.lastname: Su
mesh_terms: D000368:Aged; D017809:Fatal Outcome; D006801:Humans; D007416:Intestinal Perforation / Q000150:complications / Q000601:surgery; D008297:Male; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D011860:Radiography, Abdominal / Q000379:methods; D012810:Sigmoid Diseases / Q000150:complications / Q000601:surgery; D016683:Supine Position