Funding for this research was provided by:
Young Scientists Fund (81902320, 81703532, 81701490)
Received: 30 September 2019
Accepted: 3 May 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: This study was approved by decisions of the Ethics Committee of the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University. The data used in this study was anonymised before its use.
: Not applicable.
: The authors declare that they have no competing interests.