Yarmishko, V. T.
Ignateva, O. V.
Article History
Received: 1 November 2018
Revised: 23 April 2019
Accepted: 23 April 2019
First Online: 9 January 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.