Du, Yang
Liu, Peng
Meng, Fangang
Fan, Lijun
Jia, Qingzhen
Li, Weidong
Jiang, Wen
Ma, Jing
Zheng, Heming
Wang, Peihua
Sun, Dianjun
Shen, Hongmei http://orcid.org/0000-0002-8807-9897
Funding for this research was provided by:
National Natural Science Foundation of China (81830098)
Article History
Received: 8 September 2021
Accepted: 22 November 2021
First Online: 17 December 2021
Declarations
:
: Research approval was obtained from the Ethics Committee of Harbin Medical University. The study was performed in accordance with the Declaration of Helsinki. All participants consent to participate in this study.
: This study involved human participants.
: Written informed consent was obtained from the adult participants or the guardians on behalf of the participating children prior to the survey.
: All authors consent for publication.
: The authors declare no competing interests.