Neverova, G. P.
Zhdanova, O. L.
Frisman, E. Ya.
Article History
Received: 21 May 2019
Revised: 25 June 2019
Accepted: 9 July 2019
First Online: 6 July 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest.
: This study does not contain any research involving animals as objects of research.
: This article does not contain any research involving people as an object.