Xu, Jianwei
Du, Xiaofu
Bai, Yamin
Fang, Le
Liu, Min
Ji, Ning
Zhong, Jieming
Yu, Min
Wu, Jing
Funding for this research was provided by:
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Chinese Center for Disease Control and Prevention (2018A203)
Article History
Received: 30 July 2019
Revised: 9 October 2019
Accepted: 9 October 2019
First Online: 28 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.