Correction to: Eur Arch Otorhinolaryngol (2017) 274:3315–3326 https://doi.org/10.1007/s00405-017-4643-3

In the original publication of the article, the ethical approval number was published incorrectly as GO 14/195-30. The correct number is GO 14/580-21. Hence, the paragraph under the section “Materials and method” should read as below.

This study was conducted in Hacettepe University Medical School, Department of Ear, Nose and Throat, and Department of Audiology and Speech Pathology. The study was approved by the Ethical Committee of Hacettepe University with registration number of GO 14/580-21).