Funding for this research was provided by:
National Natural Science Foundation of China (81500034)
Article History
Received: 31 July 2018
Accepted: 25 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: The Medical Ethics Committee of Xiangya Hospital of Central South University approved this study, and all experiments were performed according to the guidelines of the Committee. All participants signed informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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