[Various age-specific aspects of peptic ulcer].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000453:epidemiology; D012744:Sex Ratio; D014505:Urban Population
Nekotorye vozrastnye aspekty iazvennoĭ bolezni zheludka i dvenadtsatiperstnoĭ kishki.