He, Xiaojie
Qi, Shanshan
Zhang, Xi
Pan, Jiandong
Article History
Received: 18 January 2022
Accepted: 10 August 2022
First Online: 17 August 2022
Declarations
:
: The protocols for conduct of NHANES were approved by the NCHS institutional review board. The Johns Hopkins Medical Institutions Institutional Review Board reviewed and approved the study (NCHS IRB/ERB Protocol Number: #2005–06, #2011–17). Informed written consent was obtained from all participants. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.