Sinjushin, A. A.
Article History
Received: 11 June 2020
Revised: 11 June 2020
Accepted: 11 June 2020
First Online: 16 August 2021
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests</i>. The author declares that he has no conflict of interests.
: <i>Statement on the welfare of humans or animals</i>. This article does not contain any studies involving animals performed by the author.