Funding for this research was provided by:
Six Talent Peaks Project in Jiangsu Province (2014-WSN-006)
Received: 12 July 2020
Accepted: 3 September 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the First Affiliated Hospital of Nanjing Medical University. Written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.