Feng, Yunfu
Zheng, Sijie
Liu, Luojie
Yang, Yanting
Article History
Received: 3 May 2023
Accepted: 9 June 2023
First Online: 20 June 2023
Declarations
:
: The study was approved by the National Centre for Health Statistics Research Ethics Review Board.
: All individuals signed an informed consent form.
: The authors declare no competing interests.