Funding for this research was provided by:
National Natural Sciences Foundation of China (No. 81302219)
Received: 21 April 2017
Accepted: 10 January 2018
First Online: 17 January 2018
Ethics approval and consent to participate
: The institutional review board of Tongji Hospital approved the study (IRB ID: TJ-C20141219). This study does not involve the use of any animal data or tissue.
: Not applicable.
: The authors declare that they have no competing interests.
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