Xu, Xiaoshan
Luo, Liuhong
Song, Chang
Li, Jianjun
Chen, Huanhuan
Zhu, Qiuying
Lan, Guanghua
Liang, Shujia
Shen, Zhiyong
Cao, Zhiqiang
Feng, Yi
Liao, Lingjie
Xing, Hui
Shao, Yiming
Ruan, Yuhua
Article History
Received: 1 July 2021
Accepted: 3 November 2021
First Online: 12 November 2021
Declarations
:
: The ethical review of this study was approved by the Medical Ethics Certification Committee of the Chinese Center for Disease Control and Prevention (Approval no. X190111537). Informed consent was obtained from all participants prior to the study. Pseudo-identified information obtained during the study was stored on a secure server and access to data was password protected and granted to the researchers. All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing interests.