Zhang, Dan
Mao, Haiyan
Lou, Xiuyu
Pan, Junhang
Yan, Hao
Tang, Hongfeng
Shu, Yan
Zhao, Yun
Cheng, Xiaoli
Tao, Hong
Zhang, Yanjun
Ma, Xuejun
Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2016TFC1202700)
Ministry of Science and Technology of the People's Republic of China (2016YFC1200903)
Ministry of Science and Technology of the People's Republic of China (2017YFC1200503)
Ministry of Science and Technology of the People's Republic of China (2017ZX10302301-004)
Ministry of Science and Technology of the People's Republic of China (2017ZX10104001)
Article History
Received: 17 January 2018
Accepted: 14 June 2018
First Online: 30 June 2018
Compliance with ethical standards
:
: All the authors approved the final manuscript, and they have no conflict of interest to declare.
: All aspects of this study were performed in accordance with national ethics regulations and approved by the Institutional Review Boards of the Center for Disease Control and Prevention of Zhejiang. Children’s parents were apprised of the study’s purpose and of their right to keep information confidential. Written informed consent was obtained from parents or caregivers.