[On the incidence of duodenal and stomach ulcer in miners].
D004381:Duodenal Ulcer / Q000453:epidemiology*; D006801:Humans; D008906:Mining; D012426:Russia; D013276:Stomach Ulcer / Q000453:epidemiology*
K voprosu o rasprostranennosti iazvennoĭ bolezni zheludka i dvenadtsatiperstnoĭ kishki u shakhterov.