Satpaeva, Zh. B.
Shulgau, Z. T.
Akhmetova, S. B.
Nurkenov, O. A.
Fazylov, S. D.
Burkeev, M. Zh.
Article History
Received: 10 February 2020
Revised: 20 February 2020
Accepted: 22 February 2020
First Online: 24 September 2020
COMPLIANCE WITH ETHICAL STANDARDS
: This article does not contain studies that use humans and animals as objects of research.
: The authors state that there is no conflict of interests.