Funding for this research was provided by:
Natural Science Foundation of Hunan Province (2018JJ3771)
Text and Data Mining valid from 2019-04-25
Received: 17 October 2018
Accepted: 10 April 2019
First Online: 25 April 2019
Ethics approval and consent to participate
: The study obtained consent from all patients and Ethics approval from the Second Xiangya Hospital of Central South University (Changsha, China).
: Not applicable.
: The authors declare that they have no competing interests.
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