Gagarin, V. G.
Article History
Received: 16 June 2017
Revised: 20 October 2017
Accepted: 16 February 2018
First Online: 27 February 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests</i>. The author declares that he have no conflict of interest.
: <i>Statement on the welfare of animals</i>. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.