Frolova, A. Yu.
Pakhomov, A. A.
Martynov, V. I.
Article History
Received: 8 June 2020
Revised: 19 June 2020
Accepted: 20 June 2020
First Online: 20 March 2021
COMPLIANCE WITH ETHICAL STANDARDS
: This article does not contain any studies with the use of humans as objects of research.
: The authors state that there is no conflict of interest.