Funding for this research was provided by:
Academic Aid Project for Top Talents (Professionals) in Colleges and Universities of Anhui Province (gxbjZD09)
Project for Anhui Province Academic Technology Leader Reserve Candidates’ Academic Research Activities (2017H108)
Text and Data Mining valid from 2019-10-21
Received: 11 July 2019
Accepted: 12 September 2019
First Online: 21 October 2019
Compliance with Ethical Standards
: The present study was approved by the Anhui Medical University biomedical ethics committee. All subjects had written an informed consent form before participating in this study.
: The authors declare that there are no conflicts of interest.