Lin, Z.
Shi, G.
Liao, X.
Liu, W.
Luo, X.
Zhan, H.
Cai, X.
Article History
Received: 15 December 2022
Accepted: 16 March 2023
First Online: 23 March 2023
Declarations
:
: The study was approved by the ethics review board of the National Center for Health Statistics.
: Written consent was obtained from each participant.
: Not applicable.
: None.