Han, Wenxiu
Jiang, Pei
Guo, Yujin
Xu, Pengfei
Dang, Ruili
Li, Gongying
He, Xin
Liao, Dehua
Yan, Genquan
Article History
Received: 12 February 2018
Accepted: 7 January 2019
First Online: 22 January 2019
Ethics approval and consent to participate
: Our study was approved by the medical ethics committee of the Second Xiangya Hospital of Central South University. Written informed consent was signed by each participant or their parents/legal guardians before they participated in the study.
: Not Applicable.
: The authors declare that they have no competing interests.
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