Ma, Ming
Liu, Xiaolong
Jia, Gengxin
Liu, Zhongcheng
Zhang, Kun
He, Liangzhi
Geng, Bin
Xia, Yayi
Article History
Received: 23 December 2021
Accepted: 26 July 2022
First Online: 13 August 2022
Declarations
:
: The National Center for Health Statistics (NCHS) Research Ethics Review Board (ERB) approved this study. Participants were voluntary, confidential, and signed the informed consent form. Further information can be found at ExternalRef removed.
: None.