Jin, Danqun
Yu, Tian
Zhang, Le
Wang, Tao
Hu, Jun
Wang, Yajian
Yang, Xiu-An
Article History
Received: 24 February 2017
Accepted: 26 April 2017
First Online: 3 May 2017
Compliance with Ethical Standards
: This study was approved by the ethics committee of Anhui Provincial Children’s Hospital and Hunan Provincial People’s Hospital. Informed consents were received from the parents prior to the study.
: The authors declare that they have no conflict of interest.
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