see: Flexible Fiberoptic Exam Transnasal Fiberoptic Laryngoscopy Instruction Video
see also: Examination of the subglottis with transnasal laryngoscopy; Laryngeal EMG with Concurrent Transnasal Laryngoscopy; Two Nostril Approach to Laryngeal Biopsies and KTP Lasing Instruction Video; Two Nostril Technique to Biopsy Laryngeal Leukoplakia (Steering Sheath); Presbylaryngis Transnasal Laryngoscopy (vocal cord thinning with age)