Aumalikova, Moldir http://orcid.org/0000-0002-4242-9193
Bakhtin, Meirat
Кazymbet, Polat
Zhumadilov, Кassym
Altaeva, Nursulu
Ibrayeva, Danara
Shishkina, Elena
Article History
Received: 7 November 2019
Accepted: 19 September 2020
First Online: 24 September 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.