Vetrovoy, O. V.
Nimiritsky, P. P.
Tyulkova, E. I.
Rybnikova, E. A.
Article History
Received: 18 May 2020
Revised: 29 May 2020
Accepted: 1 June 2020
First Online: 16 April 2021
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This work did not involve human beings or animals as objects of research.