Ilyushina, N. A.
Article History
Received: 22 October 2019
Revised: 6 December 2019
Accepted: 14 January 2020
First Online: 9 October 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interest . The author declares that she has no conflicts of interest.
: Statement on the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
: Statement of compliance with standards of research involving humans as subjects. This article does not contain any research involving humans as a subject.