Abakumov, A. I.
Pak, S. Ya.
Morozov, M. A.
Tynybekov, A. K.
Article History
Received: 3 April 2018
Revised: 24 May 2018
Accepted: 1 August 2018
First Online: 23 January 2020
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.