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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (31570003, 31870980, 31800823)
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Article History
Received: 7 November 2019
Accepted: 6 January 2020
First Online: 13 January 2020
Ethics approval and consent to participate
: All patients signed informed consent forms before participating in this study, and this study has been ratified by Ethical Commission Chongqing University.
: Not applicable.
: The authors declare that they have no competing interests.
