Wang, Xueyin
Zhao, Gengli
Di, Jiangli
Wang, Linhong
Zhang, Xiaosong
Article History
Received: 6 January 2022
Accepted: 25 July 2022
First Online: 29 July 2022
Declarations
:
: The study protocol was approved by the Ethical Review Committee of the Chinese Center for Disease Control and Prevention (No. 201810). All methods were carried out in accordance with the relevant guidelines and regulations. All participants provided written informed consent.
: No applicable.
: The authors declare that there are no competing interests.