Efimov, P.
Machs, E.
Liksakova, N.
Chetverikov, P.
Article History
Received: 16 June 2020
Revised: 5 February 2021
Accepted: 2 May 2021
First Online: 29 September 2021
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interests . The authors declare that they have no conflicts of interest.
: Statement on the welfare of humans or animals . This article does not contain any studies involving humans or animals performed by any of the authors.