Xu, Xiaoqing
Wei, Wei
Xu, Jiaxu
Huang, Jiaxin
Li, Li
Han, Tianshu
Qi, Jiayue
Sun, Changhao
Li, Ying
Jiang, Wenbo
Funding for this research was provided by:
the national natural science foundation (82030100, 81803227)
the Young Elite Scientists Sponsorship Program by CAST (2019QNRC001)
Article History
Received: 23 December 2020
Accepted: 22 July 2021
First Online: 11 August 2021
Declarations
:
: The institutional review board approval of the National Center for Health Statistics and written informed consent were obtained before data collection.
: Not applicable.
: The authors have no conflicts of interest with the material presented in this manuscript.