Sokolov, V. A.
Abdyrakhmanova, E. A.
Article History
Received: 6 December 2018
Revised: 18 February 2019
Accepted: 19 March 2019
First Online: 26 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.