Gordeeva, N. I.
Komarevtseva, E. K.
Article History
Received: 1 June 2018
Revised: 19 October 2018
Accepted: 21 November 2018
First Online: 15 January 2021
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.