Funding for this research was provided by:
National Natural Science Foundation of China (81472792)
Postgraduate Research & Practice Innovation Program of Jiangsu Province (SJCX18_0707)
Received: 5 November 2018
Accepted: 6 February 2019
First Online: 12 February 2019
: All animal experiments were approved by the Animal Care and Use Committee of Xuzhou Medical University.
: No conflict of interest exits in the submission of this manuscript, and manuscript is approved by all authors for publication.
: The authors declare that they have no competing interests.
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