title: ESOPHAGOGASTROSCOPY: AN ADVANTAGE IN THE DIAGNOSIS OF ACUTE UPPER GASTROINTESTINAL HEMORRHAGE.
mesh_terms: D000208:Acute Disease; D004945:Esophagoscopy; D006471:Gastrointestinal Hemorrhage; D005773:Gastroscopy; D006470:Hemorrhage; D006801:Humans
keywords: ESOPHAGOSCOPY; GASTROSCOPY; HEMORRHAGE, GASTROINTESTINAL