Funding for this research was provided by:
National Natural Science Foundation of China (81772334)
Text and Data Mining valid from 2019-01-24
Received: 3 October 2018
Revised: 26 December 2018
Accepted: 3 January 2019
First Online: 24 January 2019
Ethics approval and consent to participate
: All animal experiments were approved by the Institutional Animal Care and Use Committee of Peking University.
: All authors agree to publish this manuscript.
: The authors declare that they have no competing interests.
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