Qin, Zhenzhen
Li, Chao
Qi, Shengxiang
Zhou, Hairong
Wu, Jie
Wang, Weiwei
Ye, Qing
Yang, Huafeng
Wang, Chenchen
Hong, Xin
Article History
Received: 9 November 2021
Accepted: 18 February 2022
First Online: 2 March 2022
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki and the protocol was approved by the Ethics Committee of Nanjing Center for Disease Control and Prevention. Written informed consent was obtained from all participants.
: Not Applicable.
: The authors declare that they have no competing interests.