[Characteristics of perforating peptic ulcers under conditions of the Far Northeast].
D000293:Adolescent; D000328:Adult; D002980:Climate; D006801:Humans; D008875:Middle Aged; D010439:Peptic Ulcer Perforation; D012800:Siberia
Osobennosti probodnykh iazv zheludka i dvenadtsatiperstnoĭ kishki v usloviiakh kraĭnego severo-vostoka.