Intraperitoneal versus retroperitoneal air signs in abdominal radiographs.
Wang
Yen-Chieh
YC
Lin
Chih-Ming
CM
Chen
Shao-Kuan
SK
D000006:Abdomen, Acute / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D000368:Aged; D005260:Female; D006801:Humans; D010439:Peptic Ulcer Perforation / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D011027:Pneumoperitoneum / Q000145:classification / Q000000981:diagnostic imaging* / Q000209:etiology; D011704:Pyelonephritis / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography