title: Omeprazole before endoscopy in patients with gastrointestinal bleeding.
authors.forename: David A
authors.initials: DA
authors.lastname: Elphick
authors.forename: Stuart A
authors.initials: SA
authors.lastname: Riley
mesh_terms: D000897:Anti-Ulcer Agents / Q000008:administration & dosage*; D003627:Data Interpretation, Statistical; D004724:Endoscopy; D006801:Humans; D009853:Omeprazole / Q000008:administration & dosage*; D010438:Peptic Ulcer Hemorrhage / Q000188:drug therapy*; D011292:Premedication
chemical_list: D000897:Anti-Ulcer Agents; D009853:Omeprazole