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Article History

Received: 12 October 2022

Accepted: 4 October 2023

First Online: 19 October 2023

Declarations

:

: This study has been approved by the Ethics Review Board of the School of Health Care Management, Shandong University (ECSHCMSDU20181102), and conforms to the ethics guidelines of the Declaration of Helsinki. Informed consent was obtained from all participants prior to questionnaire administration, and children under the age of 16 obtain the consent of their parents or legal guardians.

: Not applicable.

: The authors declare no competing interests.