The impact of endoscopy in acute upper gastrointestinal hemorrhage in a small hospital.
D004381:Duodenal Ulcer / Q000175:diagnosis; D004945:Esophagoscopy; D005756:Gastritis / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D005773:Gastroscopy; D006769:Hospitals, General; D006801:Humans; D008309:Mallory-Weiss Syndrome / Q000175:diagnosis; D013276:Stomach Ulcer / Q000175:diagnosis