Fedoreyeva, L. I.
Vanyushin, B. F.
Article History
Received: 8 July 2019
Revised: 10 October 2019
Accepted: 7 November 2019
First Online: 22 July 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.