[Linguistic adaptation and validation of the voice handicap index (VHI)-30 in patients with dysphonia into Russian].

Unlabelled: Purpose of the study is to assess the internal consistency, reliability of retesting and clinical reliability of the Russian version of the Voice Handicap Index (VHI)-30 questionnaire.

Material And Methods: It is prospective observational study. The original English version of the VHI-30 questionnaire was translated into Russian by two independent researchers (professional translators).