Funding for this research was provided by:
National Natural Science Foundation of China (81471329)
National Science and Technology Major Project (2016YFC1000707)
Public health program of Capital (Z141100002114001)
Text and Data Mining valid from 2019-02-21
Received: 22 February 2018
Accepted: 30 January 2019
First Online: 21 February 2019
Ethics approval and consent to participate
: The research has approved by Chinese PLA General Hospital ethics committee, who permitted us to access patient’s data in all the cooperating hospitals. Informed written consent was obtained from patients’ parents, who gave their consent for their children’s information to be published in this manuscript.
: Written informed consent obtained from the patient’s parents for publication of this article and any accompanying Tables and Figures.
: Foundation sponsors of the study played no role in the study design, data collection, data analysis, data interpretation, or writing of report. Authors have no competing interest in relation to the submission. The corresponding author had full access to all the data in the study and had final responsibility for the decision to submit for publication.
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