Starikov, V. P.
Vartapetov, L. G.
Article History
Received: 8 April 2020
Revised: 21 May 2020
Accepted: 28 May 2020
First Online: 19 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.