Early gastroscopy in patients with hematemesis and melena.
D000328:Adult; D000368:Aged; D004415:Dyspepsia / Q000209:etiology; D005260:Female; D005756:Gastritis / Q000150:complications / Q000175:diagnosis*; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000601:surgery; D005773:Gastroscopy; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D008297:Male; D008551:Melena / Q000209:etiology*; D008875:Middle Aged; D010437:Peptic Ulcer / Q000150:complications / Q000175:diagnosis* / Q000401:mortality / Q000601:surgery; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging