He, Jing
Xue, Qingfeng
Hua, Xin
Li, Quanqing
Chen, Ziwei
Zhu, Cindy
Shi, Wenyu
Funding for this research was provided by:
National Natural Science Foundation of China (81570184)
Article History
Received: 17 September 2022
Accepted: 22 November 2022
First Online: 8 December 2022
Declarations
:
: The study was approved by the institutional review board of National Center for Health Statistics.
: NA.
: NA.
: The authors declare no competing interests.