Meng, Zhao
Wang, Chen
Tian, Li-Jun
Zhang, Xue-Jun
Guo, Dong
Zou, Yan
Funding for this research was provided by:
the Key Project of Medical Scientific Research of Hebei Province (04096)
Key Research and Development Plan of Hebei Province (18277745D)
Article History
Received: 18 July 2018
Accepted: 28 September 2018
First Online: 16 October 2018
Ethics approval
: This study was approved by the ethical committee of the Children’s Hospital of Hebei Province.
: Not applicable.
: The authors declare that they have no competing interests.
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