Text and Data Mining valid from 2018-11-06
Received: 3 April 2018
Accepted: 23 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee at the Institute of Physiology and Pathology of Hearing and every patient gave an informed consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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