Shen, Xin-xin
Qiu, Fang-zhou
Li, Gui-xia
Zhao, Meng-chuan
Wang, Ji
Chen, Chen
Zhao, Li
Qi, Ju-Ju
Liu, Hong
Zhang, Yi
He, Xiao-zhou
Wang, Le
Feng, Zhi-shan
Ma, Xue-jun
Funding for this research was provided by:
National key research and development plan (2016YFC1202700, 2016YFC1200900)
Article History
Received: 17 April 2018
Accepted: 30 July 2018
First Online: 25 September 2018
Compliance with ethical standards
:
: All the authors approved the final manuscript and they have no conflict of interest to declare.
: All aspects of the study were performed in accordance with national ethics regulations and approved by the Institutional Review Boards of National Institute for Viral Disease Control and Prevention, Center for Disease Control and Prevention of China and the Ethics Committee of Children’s hospital of Hebei Province, china. Informed consent was obtained from all individual participants included in the study.