Shpanev, A. M.
Denisyuk, E. S.
Article History
Received: 26 August 2019
Revised: 9 October 2019
Accepted: 23 October 2019
First Online: 1 December 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflicts of interest.
: This article does not contain any studies involving animals performed by any of the authors.
: This article does not contain any studies involving human participants performed by any of the authors.