Li, Yan-feng
Zheng, Xiao
Gao, Wen-lan
Tao, Feng
Chen, Yi
Article History
Received: 11 May 2022
Accepted: 17 October 2022
First Online: 4 November 2022
Declarations
:
: The ethics review board of the National Center for Health Statistics approved all NHANES protocols and written informed consent was obtained from all participants. All data were obtained from NHANES directly in the deidentified form, and thus this study did not require additional Institutional Review Board approval.
: Not applicable.
: The authors declare that they have no competing interests.