Shepelev, M. V.
Korobko, I. V.
Article History
Received: 25 October 2018
Revised: 15 November 2018
Accepted: 26 November 2018
First Online: 7 April 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.