Funding for this research was provided by:
Ruhr-Universität Bochum
Article History
Received: 30 November 2021
Accepted: 28 March 2022
First Online: 6 May 2022
Declarations
:
: The Department of Otorhinolaryngology, Head and Neck Surgery at St. Elisabeth-Hospital in Bochum, Ruhr-University of Bochum, has received unrelated third-party funds from MED-EL. Stefan Dazert and Stefan Volkenstein have received travel expense support from MED-EL. The authors declare that the research was conducted in the absence of any commercial or financial relationships and report no other conflicts of interest in this work. The other authors declare that they have no potential conflict of interest in relation to this study. The other authors declare that they have no potential conflict of interest in relation to this study.
: The study was approved by the local ethics committee (Ärztekammer Nordrhein, No. 2017044) and in consistence of the Declaration of Helsinki.