Efimtseva, E. A.
Chelpanova, T. I.
Article History
Received: 30 July 2018
Revised: 11 April 2019
Accepted: 10 October 2019
First Online: 13 May 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declare that they have no real or potential conflict of interest.
: This article does not contain any studies involving animals or humans as subjects performed by any of the authors.