Karpov, P. A.
Rayevsky, A. V.
Sheremet, Ya. A.
Yemets, A. I.
Blume, Ya. B.
Article History
Received: 24 January 2000
Revised: 24 February 2020
Accepted: 18 July 2020
First Online: 6 August 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.