title: [Epidemiology of duodenal ulcer].
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D004381:Duodenal Ulcer / Q000453:epidemiology* / Q000235:genetics / Q000523:psychology; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012959:Socioeconomic Factors
vernacular_title: Die Epidemiologie des Duodenalulkus.