Frolov, А. V.
Akhmetova, L. A.
Article History
Received: 17 December 2019
Revised: 21 April 2020
Accepted: 21 April 2020
First Online: 27 July 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. All applicable international, national, and institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted.