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Authors
Udina, I. G.
Vasiliev, Yu. A.
Volobuyev, V. V.
Gracheva, A. S.
Gulenko, O. V.
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Article History
Received: 25 January 2021
Revised: 29 April 2021
Accepted: 11 May 2021
First Online: 12 October 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest</i>. The authors declare that they have no conflict of interest.
: <i>Statement of compliance with standards of research involving humans as subjects</i>. All procedures performed in a study involving people comply with the ethical standards of the institutional and/or national committee for research ethics and the 1964 Helsinki Declaration and its subsequent changes or comparable ethical standards.
: Informed voluntary consent was obtained from each of the participants.
