Meng, Fanchao
Qi, Yanjie
Chen, Xu
Yan, Xiuping
Huang, Huanhuan
He, Fan
Article History
Received: 21 June 2022
Accepted: 26 September 2022
First Online: 11 October 2022
Declarations
:
: The National Center for Health Statistics institutional review board approved the study protocols.Written informed consent was obtained from each participant and from the legal representative of the dead participants.All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors have no conflicts of interest to declare.