Funding for this research was provided by:
National Natural Science Foundation of China (81170462)
Text and Data Mining valid from 2019-02-04
Received: 25 January 2018
Accepted: 9 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: All participants signed informed consents before participation. The research protocol was approved by the Ethics Committee of Tongji Medical College, Huazhong University of Science and Technology.
: Not applicable.
: The authors declare that they have no competing interests.
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