Derzhavina, N. M.
Article History
Received: 17 January 2019
Revised: 18 February 2019
Accepted: 20 February 2019
First Online: 16 October 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declares that there is no conflict of interest.
: <i>Statement on the welfare of animals</i>. This article does not contain any studies involving animals performed by any of the authors.