Funding for this research was provided by:
National Natural Science Foundation of China (81701352, 31771119, 81771420)
foundation from China medicine education association (2016SKT-M014)
Foundation from Shaanxi (2017KW-ZD-01, 2016JM3030)
Received: 21 December 2017
Accepted: 25 February 2018
First Online: 5 March 2018
: The animal procedures involved in this study were reviewed and approved by the Fourth Military Medical University Animal Care and Use Committee.
: Not applicable.
: The authors declare that they have no competing interests.
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