Funding for this research was provided by:
Natural Science Foundation of Hunan Province (2018JJ2642)
Text and Data Mining valid from 2020-02-14
Received: 27 July 2019
Accepted: 23 January 2020
First Online: 14 February 2020
Ethics approval and consent to participate
: The experiments were approved by the ethics committee of Xiangya Hospital of Central South University (reference: 201503239).
: Not applicable.
: The authors declare that they have no competing interests.