Funding for this research was provided by:
The Science Foundation of Department Education of Anhui Province (KJ2017ZD49)
the Talent Foundation of the Education Department of Anhui (gxbjZD2016111)
Doctoral Startup Foundation of Wannan Medical College (wYRCQD201715)
Article History
Received: 26 January 2018
Accepted: 6 June 2018
First Online: 9 June 2018