[Postoperative peptic ulcer. Considerations on 33 cases].
D000368:Aged; D005260:Female; D005743:Gastrectomy / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000209:etiology*
Ulcera péptica postoperatoria. Consideraciones sobre 33 casos.