Kruglova, N. A.
Kopylov, A. T.
Filatov, A. V.
Article History
Received: 26 March 2019
Revised: 4 April 2019
Accepted: 12 April 2019
First Online: 18 October 2019
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.