Abdullin, Kh. A.
Zhumagulov, S. K.
Ismailova, G. A.
Kalkozova, Zh. K.
Kudryashov, V. V.
Serikkanov, A. S.
Article History
Received: 25 September 2019
Revised: 28 January 2020
Accepted: 3 February 2020
First Online: 6 August 2020
CONCLICT OF INTEREST
: The authors declare that they have no conflicts of interest.