Pestov, S. V.
Ogorodnikova, S. Yu.
Article History
Received: 12 February 2019
Revised: 5 March 2019
Accepted: 25 March 2019
First Online: 15 January 2021
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.