Validity and reliability of the glottal function index.

@article{Bach2005ValidityAR,
  title={Validity and reliability of the glottal function index.},
  author={Kevin K. Bach and Peter C Belafsky and Kathleen Wasylik and Gregory N. Postma and Jamie A. Koufman},
  journal={Archives of otolaryngology--head & neck surgery},
  year={2005},
  volume={131 11},
  pages={
          961-4
        }
}
OBJECTIVE To evaluate a symptom-focused vocal impairment instrument for the evaluation of patients with voice disorders. DESIGN Prospective, nonrandomized study of patients with voice disorders undergoing treatment with validation of a new symptom index, the Glottal Function Index (GFI). SETTING Voice disorders clinic at an academic tertiary care hospital. PATIENTS Consecutive patients undergoing therapy for glottal insufficiency, adductor spasmodic dysphonia, nodules, and granuloma (40… CONTINUE READING

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