Emergency endoscopy in upper gastrointestinal haemorrhage.
D004630:Emergencies; D004724:Endoscopy / Q000379:methods; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000628:therapy; D005773:Gastroscopy / Q000379:methods; D006801:Humans; D008297:Male