Qi, Xin
Li, Yingying
Hu, Jiabin
Meng, Lingbing
Zeng, Ping
Shi, Jing
Jia, Na
Zeng, Xuezhai
Li, Hui
Zhang, Qiuxia
Li, Juan
Liu, Deping
Funding for this research was provided by:
National Key R&D Program of China (2020YFC2003001, 2020YFC2003000)
Article History
Received: 17 July 2022
Accepted: 18 August 2023
First Online: 1 September 2023
Declarations
:
: The research protocol received approval from the National Bureau of Statistics (No. [2014] 87) and was also approved by the ethics committee of our institution (2021BJYYEC-294-01). Prior to participating in the survey, all participants and their legal guardians provided written informed consent.
: Not applicable.
: The authors declare no competing interests.