Maltsev, Y. I.
Maltseva, I. A.
Maltseva, S. Yu.
Kulikovskiy, M. S.
Article History
Received: 16 October 2019
Revised: 13 January 2020
Accepted: 30 January 2020
First Online: 18 May 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.