The development of flexible fiberoptic video nasendoscopy (FFVN). Clinical-teaching-research applications.
D005336:Fiber Optic Technology; D006801:Humans; D007818:Laryngeal Diseases / Q000473:pathology*; D020704:Laryngoscopes; D012106:Research; D013064:Speech Disorders / Q000473:pathology*; D014741:Video Recording / Q000295:instrumentation*; D014827:Vocal Cords / Q000473:pathology*