Varfolomeev, S. D.
Bykov, V. I.
Tsybenova, S. B.
Article History
Received: 9 September 2019
Revised: 9 September 2019
Accepted: 9 September 2019
First Online: 1 June 2020
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.