[Peptic ulcer and its complication in persons over 60 years].
D000367:Age Factors; D000368:Aged; D006801:Humans; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications*
Iazvennaia bolezn' zheludka i dvenadtsatiperstnoĭ kishki i ee oslozhneniia u lits starshe 60 let.