HAEMORRHAGE FROM THE UPPER ALIMENTARY TRACT.
D001803:Blood Transfusion; D004381:Duodenal Ulcer; D005743:Gastrectomy; D005853:Geriatrics; D006470:Hemorrhage; D006801:Humans; D010438:Peptic Ulcer Hemorrhage; D013223:Statistics as Topic; D013276:Stomach Ulcer; D041742:Upper Gastrointestinal Tract
BLOOD TRANSFUSION; DUODENAL ULCER; GASTRECTOMY; GERIATRICS; PEPTIC ULCER HEMORRHAGE; STATISTICS; STOMACH ULCER