Li, Li-ming
Feng, Lei-yu
Chen, Xiao-hua
Liang, Pan
Li, Jing
Gao, Jian-bo
Funding for this research was provided by:
the National Natural Science Foundation of China (No.81701687)
Article History
Received: 12 April 2018
Accepted: 29 July 2018
First Online: 7 August 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the First Affiliated Hospital of Zhengzhou University, and the requirement for informed consent was waived.
: Not applicable.
: The authors declare that they have no competing interest.
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