[Statistical studies on massive hemorrhage of the stomach and duodenum].
D000328:Adult; D000368:Aged; D004378:Duodenal Diseases / Q000453:epidemiology; D005260:Female; D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged