Esophagoscopy and gastroscopy with a single instrument. Experiences with a fiberoptic esophagogastroscope.
D020701:Esophagoscopes; D005336:Fiber Optic Technology; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D020699:Gastroscopes; D006801:Humans; D055095:Optics and Photonics