Zhang, Qiang
Ruan, Yuan
Hu, Wenmin
Li, Juanjuan
Zhao, Jiang
Peng, Min
Wan, Rong
Min, Xiangdong
He, Shaomei
Liu, Zhitao
Article History
Received: 22 March 2021
Accepted: 29 August 2021
First Online: 23 September 2021
Declarations
:
: The study was approved by the Institutional Review Board at Yunnan Center for Disease Control and Prevention (2019–01). All protocols are carried out in accordance with the principles of the Declaration of Helsinki. Signed informed consent was obtained from all the participants.
: Not applicable.
: The authors declare that they have no competing interests.