[ABDOMINAL NATIVE ROENTGENOGRAMS IN THE DIAGNOSIS OF PERFORATED GASTRODUODENAL ULCER].
D006801:Humans; D010439:Peptic Ulcer Perforation; D011859:Radiography
PEPTIC ULCER PERFORATION; RADIOGRAPHY
VATSANALUEEN NATIIVIROENTGENKUVAUS PUHJENNEEN MAHAHAAVAN DIAGNOSTIIKASSA.