Funding for this research was provided by:
Yunnan Province Project Education Fund (ZD2012006)
Yunnan Local Colleges Applied Basic Research Projects (2017FH001-098)
Text and Data Mining valid from 2019-01-31
Received: 10 September 2018
Accepted: 10 January 2019
First Online: 31 January 2019
Ethics approval and consent to participate
: This study was approved by the Medical Ethics Committee of Medicine Department of Kunming University.
: Not applicable.
: The authors declare that they have no competing interests.
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