Tsvetnova, O. B.
Kononets, O. P.
Shcheglov, A. I.
Article History
Received: 11 March 2020
Revised: 23 March 2020
Accepted: 23 March 2020
First Online: 20 February 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declare that they have no conflicts of interest.<i>Statement on the welfare of humans or animals.</i> This article does not contain any studies involving animals performed by any of the authors.