Li, Zeyu
Lu, Xinzhuo
Zhang, Keshuai
Wu, Shuangyan
Yu, Wei
Chen, Xiaoling
Zheng, Wenzhong
Article History
Received: 23 May 2023
Accepted: 13 January 2024
First Online: 23 January 2024
Declarations
:
: The survey protocol was approved by the Ethics Review Board of the National Center for Health Statistics (NCHS), and each participant provided written informed consent. All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.