Chen, Jun
Hu, Piao
Wang, Yanfei
Zhu, Zhongxin
Article History
Received: 8 March 2022
Accepted: 10 May 2022
First Online: 13 May 2022
Declarations
:
: The ethics review board of the National Center for Health Statistics approved all NHANES protocols and written informed consents were obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.