UPPER GASTROINTESTINAL BLEEDING IN THE AGED:  A PROSPECTIVE STUDY UTILIZING A YOUNGER AGE GROUP AS CONTROL.
D000375:Aging; D004381:Duodenal Ulcer; D004724:Endoscopy; D004932:Esophageal and Gastric Varices; D005756:Gastritis; D006471:Gastrointestinal Hemorrhage; D005853:Geriatrics; D006396:Hematemesis; D006801:Humans; D009026:Mortality; D011446:Prospective Studies; D011859:Radiography; D013223:Statistics as Topic; D013276:Stomach Ulcer
AGING; DUODENAL ULCER; ENDOSCOPY; ESOPHAGEAL VARICES; GASTRITIS; GERIATRICS; HEMATEMESIS; HEMORRHAGE, GASTROINTESTINAL; MORTALITY; RADIOGRAPHY; STATISTICS; STOMACH ULCER