A diagnostic procedure that examines the nasal passageways and pharynx with an instrument outfitted with an optical system.
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Bruce N. P. Benjamin has written: 'Atlas of paediatric endoscopy' -- subject(s): Atlases, Bronchoscopy, Esophagoscopy, Laryngoscopy, Nasopharyngoscopy, Pediatric otolaryngology, Pediatric respiratory diseases
The combination of surgery to correct the insufficiency and speech therapy to retrain the voice successfully alleviate velopharyngeal insufficiency.