Funding for this research was provided by:
National Natural Science Foundation of China (8187081616, 81701880)
Text and Data Mining valid from 2019-05-01
Received: 4 December 2018
Accepted: 11 April 2019
First Online: 1 May 2019
Ethics approval and consent to participate
: the West China Hospital of Sichuan University Biomedical Research Ethics Committee Approved this study (ID number: 2018–21).
: Not applicable.
: The authors declare that they have no competing interests.
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