Xu, Lili
Liu, Jun
Liu, Chunyan
Duan, Yali
Zhu, Yun
Xu, Baoping
Xie, Zhengde
Funding for this research was provided by:
National Major S & T Research Projects for the Control and Prevention of Major Infectious Diseases in China (2017ZX10103004-004, 2018ZX10305409-001-004)
Capital Health Research and Development of Special Projects (2016-2-1142)
Beijing Municipal Administration of Hospitals’ Youth Programme (QML20171201)
Article History
Received: 21 February 2018
Accepted: 15 November 2018
First Online: 7 December 2018
Ethics approval and consent to participate
: This study was performed in strict accordance with the human subject protection guidance and was approved by the Ethical Review Committee of Beijing Children’s Hospital with judgement’s reference number 2014–99. Individual written informed consent was obtained from the parents or guardians of all participants.
: The authors have no potential conflicts of interest.
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