Bakhilin, V. M. http://orcid.org/0000-0002-0116-9890
Article History
Received: 2 August 2021
Revised: 21 February 2022
Accepted: 18 March 2022
First Online: 8 September 2022
COMPLIANCE WITH ETHICAL STANDARDS
: All procedures performed in studies involving human participants were in accordance with the biomedical ethics principles formulated in the 1964 Helsinki Declaration and its later amendments and approved by the local bioethical committee of the St. Petersburg Research Institute of Ear, Throat, Nose and Speech (St. Petersburg).
: <i>Conflict</i><i>of interests.</i> The authors declare that they do not have a conflict of interest.
: <i>Informed consent.</i> Each study participant provided a voluntary written informed consent signed by him after explaining to him the potential risks and benefits, as well as the nature of the upcoming study.