Viktorov, A. A.
Kholodnov, V. A.
Anofriev, A. V.
Article History
Received: 12 August 2018
Revised: 12 August 2018
Accepted: 17 September 2018
First Online: 13 September 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.