Terentyev, V. V.
Zharmukhamedov, S. K.
Article History
Received: 14 October 2019
Revised: 21 February 2020
Accepted: 3 April 2020
First Online: 4 June 2020
Compliance with ethical norms
: This study contains no experiments with humans or animals performed by any of the authors. The authors declare no conflict of interests.