Emergency endoscopy.
D000208:Acute Disease; D004630:Emergencies; D004932:Esophageal and Gastric Varices / Q000150:complications; D005756:Gastritis / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology; D005773:Gastroscopy / Q000009:adverse effects; D006551:Hernia, Hiatal / Q000150:complications; D006801:Humans; D008309:Mallory-Weiss Syndrome / Q000150:complications; D013272:Stomach Diseases / Q000175:diagnosis*; D013274:Stomach Neoplasms / Q000150:complications