Prudnikova, T. N.
Article History
Received: 20 August 2018
Revised: 21 September 2018
Accepted: 22 October 2018
First Online: 13 August 2019
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interest. The authors declare that they have no conflict of interest. Statement of the welfare of animals. This article does not contain any studies involving animals or human participants performed by any of the authors.