Petrov, L. K.
Article History
Received: 21 January 2020
Revised: 10 February 2020
Accepted: 12 February 2020
First Online: 7 September 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> This article does not contain any studies with animals performed by any of the authors.