Pneumoperitoneum in perforated peptic ulcer; factors in roentgenographic demonstration.
D000007:Abdominal Injuries; D004381:Duodenal Ulcer; D006801:Humans; D015994:Incidence; D007274:Injections, Intraperitoneal; D016740:Meridians; D010439:Peptic Ulcer Perforation; D011027:Pneumoperitoneum / Q000209:etiology*; D012984:Software; D013898:Thoracic Injuries
PEPTIC ULCER/perforation; PNEUMOPERITONEUM/etiology and pathogenesis
Calif Med. 1951 Apr;74(4):250-2
14821821
Radiology. 1951 Oct;57(4):551-3
14883337