Yerzhebayeva, R. S.
Abekova, A. M.
Bersimbaeva, G. H.
Konysbekov, K. T.
Bastaubaeva, S. O.
Roik, N.V.
Urazaliev, K. R.
Article History
Received: 6 September 2017
Revised: 18 November 2018
Accepted: 18 July 2019
First Online: 7 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.