Pneumoperitoneum.
Horn
Amanda
A
Department of Emergency Medicine, Temple University Hospital, Philadelphia, Pennsylvania 19140, USA.
O'Neill
Gerald
G
Costantino
Thomas G
TG
D015746:Abdominal Pain / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging* / Q000209:etiology*; D011859:Radiography; D013276:Stomach Ulcer / Q000150:complications*; D014463:Ultrasonography