Krut’ko, V. N.
Dontsov, V. I.
Article History
Received: 4 May 2019
Revised: 26 November 2019
Accepted: 28 November 2019
First Online: 27 April 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This work does not describe any studies using humans and animals as objects.