Letuta, S. N.
Pashkevich, S. N.
Ishemgulov, A. T.
Nikiyan, A. N.
Article History
Received: 8 November 2019
Revised: 8 November 2019
Accepted: 22 May 2020
First Online: 19 October 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.