The role of fibroscopy in diagnosis of upper gastrointestinal disease.
D000293:Adolescent; D000328:Adult; D000368:Aged; D004724:Endoscopy; D005260:Female; D005336:Fiber Optic Technology; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography