Funding for this research was provided by:
Technical Research and Development Project of Shenzhen (JCYJ20160429174927286)
Sanming Project of Medicine in Shenzhen (SZSM201812055)
Text and Data Mining valid from 2019-03-11
Received: 28 August 2018
Accepted: 18 December 2018
First Online: 11 March 2019
Ethics approval and consent to participate
: All procedures involving human participants were performed in accordance with the ethical standards of the Shenzhen Children’s Hospital Ethical Committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Informed consent was obtained from the parents of all individual subjects included in the study.
: Not applicable
: The authors declare that they have no competing interests.
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