Marfenin, N. N.
Dementyev, V. S.
Article History
Received: 28 January 2019
Revised: 8 April 2019
Accepted: 26 June 2019
First Online: 9 October 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 humans or animals</i>. This article does not contain any studies involving animals performed by any of the authors.