Feng, Yunfu
Chen, Xiaohua
Pan, Ying
Yang, Yanting
Article History
Received: 4 September 2022
Accepted: 22 February 2023
First Online: 2 March 2023
Declarations
:
: The study was approved by the National Centre for Health Statistics Research Ethics Review Board.
: Every participant signed informed consent.
: The authors declare no competing interests.