Shi, Licheng
Yang, Yin
Su, Yingying
Liu, Jiannan
Zhu, Xuanfeng
Article History
Received: 9 January 2025
Accepted: 9 June 2025
First Online: 2 July 2025
Declarations
:
: The study was approved by the institutional review board of National Center for Health Statistics (Protocol #2005-06 and #2011-17) and all participants provided written informed consent.
: The authors declare no competing interests.