title: Fiberoptic nasotracheal intubation--incidence and causes of failure.
mesh_terms: D000328:Adult; D000368:Aged; D000772:Anesthesia, Local; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects* / Q000295:instrumentation; D008297:Male; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000150:complications; D014827:Vocal Cords