Vasil’eva, E. D.
Vasil’ev, V. P.
Article History
Received: 17 December 2018
Revised: 6 January 2019
Accepted: 15 January 2019
First Online: 1 November 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests</i>. The authors declare that they 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.