[Early diagnosis of perforated gastroduodenal ulcer].
D000293:Adolescent; D000328:Adult; D000368:Aged; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000000981:diagnostic imaging*; D011028:Pneumoperitoneum, Artificial; D011859:Radiography; D013997:Time Factors
Ranniaia diagnostika probodnykh gastroduodenal'nykh iazv.