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Authors
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Funding
Funding for this research was provided by:
Natural Science Foundation of Guangxi (2018GXNSFBA281159)
Youth Foundation of Guangxi Medical University (GXMUYSF201506)
Youth Teacher Foundation of Guangxi Education Department (2017KY0110)
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Article History
Received: 15 September 2019
Accepted: 26 November 2019
First Online: 11 December 2019
Ethics approval and consent to participate
: Not applicable.
: Our study does not contain any individual person’s data.
: The authors declare that they have no competing interests.
