title: Upper gastrointestinal bleeding: the trials of trials.
authors.forename: M J
authors.initials: MJ
authors.lastname: Langman
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000188:drug therapy*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000188:drug therapy; D012008:Recurrence; D013004:Somatostatin / Q000627:therapeutic use; D014148:Tranexamic Acid / Q000627:therapeutic use
chemical_list: D006635:Histamine H2 Antagonists; D013004:Somatostatin; D014148:Tranexamic Acid