Andreev, I. M.
Krylova, V. V.
Article History
Received: 12 December 2018
Revised: 7 February 2019
Accepted: 7 February 2019
First Online: 22 August 2019
COMPLIANCE WITH ETHIC STANDARDS
: The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants as objects of research.