To scope or not to scope.
D000328:Adult; D002986:Clinical Trials as Topic; D004630:Emergencies; D004724:Endoscopy; D004932:Esophageal and Gastric Varices / Q000175:diagnosis; D004945:Esophagoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D005773:Gastroscopy; D006801:Humans; D008103:Liver Cirrhosis / Q000175:diagnosis; D008297:Male; D008875:Middle Aged