Renchinsengee, Namsrai https://orcid.org/0000-0002-9725-7165
Batsaikhan, Saruuljavkhlan
Khangai, Ayush
Boldbaatar, Gantuya
Luvsandagva, Bayasgalan
Lazatkhan, Aigul
Duger, Davaadorj
Khasag, Oyuntsetseg
Matsumoto, Takashi
Yamaoka, Yoshio https://orcid.org/0000-0002-1222-5819
Article History
Received: 30 October 2025
Accepted: 28 January 2026
First Online: 7 February 2026
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki. The study protocol was approved by the Ethics Committee of the Ministry of Health of Mongolia (N3, 2015), Mongolian National University of Medical Sciences (N13-02/1A, 2013), and the Ethics Committee of Oita University Faculty of Medicine (Yufu, Japan) (Approval No. 1660). All participants were fully informed of the study objectives and procedures, and written informed consent was obtained before enrollment.
: The authors declare no competing interests.