GASTRIC FREEZING.
D003452:Cryosurgery; D004381:Duodenal Ulcer; D005615:Freezing; D008551:Melena; D009017:Morbidity; D009026:Mortality; D011379:Prognosis; D013270:Stomach; D013276:Stomach Ulcer
CRYOGENIC SURGERY; DUODENAL ULCER; MELENA; MORBIDITY; MORTALITY; PROGNOSIS; STOMACH; STOMACH ULCER