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Authors
Bolotova, E. V.
Trembach, V. V.
Dudnikova, A. V.
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Article History
Received: 6 August 2019
Revised: 12 August 2019
Accepted: 17 September 2019
First Online: 9 December 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Conflicts of interest . The authors declare that they have no conflict of interest.
: Statement of compliance with standards of research involving humans as subjects . Informed consent was obtained from all the participants prior to inclusion in the study. The research protocol was approved by the local ethics committee of the Kuban State Medical University (December 15, 2015, Protocol no. 39).
