[Ways of reducing mortality following the surgical treatment of peptic ulcer in advanced middle aged and elderly patients].
D000367:Age Factors; D000368:Aged; D006801:Humans; D008875:Middle Aged; D010437:Peptic Ulcer / Q000601:surgery*
Puti snizheniia letal'nosti pri khirurgicheskom lechenii iazvennoĭ bolezni u lits pozhilogo i starcheskogo vozrasta.