title: Hematemesis and free air under the diaphragm: just another perforated duodenal ulcer or something more unusual?
authors: Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI.
authors: Kelly A
authors: KA
authors: Linn
authors: Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI.
authors: Jakob
authors: J
authors: Guenther
authors: Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI. Electronic address: pspagel@mcw.edu.
authors: Paul S
authors: PS
authors: Pagel
mesh_terms: D000368:Aged; D004381:Duodenal Ulcer / Q000150:complications*; D006396:Hematemesis / Q000209:etiology*; D006551:Hernia, Hiatal / Q000150:complications*; D006801:Humans; D008297:Male; D011860:Radiography, Abdominal
keywords: acute abdomen; hiatal hernia; intrathoracic stomach; paraesophageal hernia