[Surgical treatment of peptic ulcer in patients over 50 years of age].
D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000601:surgery*
Operativnoe lechenie iazvennoĭ bolezni u bol'nykh starshe 50 let.