Funding for this research was provided by:
National Natural Science Foundation of China (81402064, 81574080)
Received: 14 October 2018
Accepted: 25 December 2018
First Online: 11 January 2019
Ethics approval and consent to participate
: All animal studies were performed according to protocols approved by Xiamen University Institutional Animal Care and Use Committee.
: Not applicable.
: The authors declare that they have no competing interests.
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