Funding for this research was provided by:
Received: 26 January 2021
Accepted: 28 April 2021
First Online: 17 May 2021
: The study was approved by the institutional review board of Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, and written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.