[Postoperative recurrence of peptic ulcer].
D005743:Gastrectomy / Q000009:adverse effects*; D005763:Gastroenterostomy / Q000009:adverse effects*; D006801:Humans; D010437:Peptic Ulcer / Q000601:surgery*; D011708:Pylorus / Q000601:surgery; D013997:Time Factors; D014628:Vagotomy / Q000009:adverse effects*