[Errors in the diagnosis of perforated ulcers of the stomach and duodenum].
D000328:Adult; D003951:Diagnostic Errors; D006801:Humans; D010439:Peptic Ulcer Perforation / Q000175:diagnosis*
Oshibki v diagnostike perforativnykh iazv zheludka i dvenadtsatiperstnoĭ kishki.