Yankovskaya, A. E.
Obukhovskaya, V. B.
Article History
Received: 14 August 2019
Revised: 9 July 2020
Accepted: 27 July 2020
First Online: 14 January 2021
CONFLICT OF INTEREST
: The authors declare that they have no conflict of interest.
: <i>Statement of compliance with the standards of research involving humans as subject</i>s. All procedures performed in the studies involving human participants were carried out in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.