Hoang, Dao Anh https://orcid.org/0009-0002-5420-5696
Nguyen, Tam Minh https://orcid.org/0000-0002-8505-677X
Tam, Dan Nguyen Ngoc https://orcid.org/0009-0001-5635-3425
Jagomägi, Triin https://orcid.org/0000-0003-4023-6256
Article History
Received: 9 December 2025
Revised: 5 March 2026
Accepted: 25 March 2026
First Online: 14 April 2026
Declarations
:
: All procedures involving human participants were conducted in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments. The study was approved by the Bioethics Committee of the Hue University of Medicine and Pharmacy, Vietnam (No. H2018/16). Written informed consent was obtained from all parents/caregivers and, subsequently, oral consent from the children.
: Not applicable.
: The authors declare that they have no competing interests.