Funding for this research was provided by:
Key Project of Excellent Youth in Higher Education Institution of Anhui Province (gxyqZD2018028)
Article History
Received: 2 March 2020
Accepted: 26 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of the First Affiliated Hospital of Anhui Medical University on October 6, 2016(approval number: PJ2016-08-06) and written informed consents have been obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.