title: Restrictive approach to transfusion best in upper gastrointestinal bleeding.
mesh_terms: D000208:Acute Disease; D017707:Erythrocyte Transfusion / Q000379:methods* / Q000401:mortality; D006471:Gastrointestinal Hemorrhage / Q000401:mortality / Q000628:therapy*; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D008107:Liver Diseases / Q000401:mortality; D008551:Melena / Q000209:etiology; D016032:Randomized Controlled Trials as Topic; D015996:Survival Rate