Kiselevsky, D. B.
Samuilov, V. D.
Article History
Received: 28 February 2019
Revised: 31 March 2019
Accepted: 20 June 2019
First Online: 12 November 2019
COMPLIANCE WITH ETHICAL STANDARDS
: The authors carried out no experiments with either animals or human beings as objects.
: The authors declare that they do not have any conflict of interest.