Mineeva, N. M.
Article History
Received: 12 January 2021
Revised: 3 June 2021
Accepted: 21 June 2021
First Online: 12 December 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The author declares that she has no conflict of interests.
: <i>Statement on the welfare of humans or animals</i>. This article does not contain any studies involving humans or animals performed by the author.