Kossybayeva, Umitzhan http://orcid.org/0000-0003-4624-541X
Shaldykova, Bagit
Akhmanova, Danna
Kulanina, Svetlana
Article History
Received: 16 November 2021
Accepted: 10 February 2022
First Online: 25 February 2022
Declarations
:
: The authors declare that the work is written with due consideration of ethical standards. The study was conducted in accordance with the ethical principles approved by the Ethics Committee of E.A. Buketov Karaganda University and Kazan Federal University.
: All participants gave their written informed consent.
: Authors declare that they have no competing interests.
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