Sarsenova, Valentina V.
Bissaliyev, Bauyrzhan N.
Tussupkaliyev, Assylbek B.
Baubekov, Zhenysbek T.
Dosmagambetov, Sagidulla P.
Article History
Received: 1 April 2026
Accepted: 10 May 2026
First Online: 24 May 2026
Declarations
:
: The authors declare no competing interests.
: The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of West Kazakhstan Marat Ospanov Medical University (Protocol No. 2-2024/052-D, dated 28 February 2024).
: Written informed consent was obtained from the parents or legal guardians of all participants.