Upper gastrointestinal endoscopy: review of 600 cases.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis