Prazdnikov, D. V.
Article History
Received: 26 August 2019
Revised: 25 October 2019
Accepted: 25 October 2019
First Online: 13 April 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest.</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.
: This article was translated by the author.