title: Epidemiologic studies and recent changes of peptic ulcer disease during the past 10 years: study of 2,548 cases collected during 1974 to 1983 in Hiroshima University Hospital.
mesh_terms: D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D013276:Stomach Ulcer / Q000453:epidemiology*