Fedorenko, O. M.
Topchieva, L. V.
Zaretskaya, M. V.
Lebedeva, O. N.
Article History
Received: 14 November 2018
Revised: 6 December 2018
Accepted: 11 February 2019
First Online: 7 August 2019
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.