Grabovets, A. I.
Krokhmal, A. V.
Article History
Received: 3 August 2020
Revised: 12 October 2020
Accepted: 16 December 2020
First Online: 17 May 2021
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interests. This article does not contain any studies involving animals or human participants performed by any of the authors.