[The incidence of stomach and duodenal ulcer among the urban population].
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000453:epidemiology*; D012426:Russia; D014505:Urban Population
Zabolevaemost' gorodskogo naseleniia iazvennoĭ bolezn'iu zheludka i dvenadtsatiperstnoĭ kishki.