Funding for this research was provided by:
Postdoctoral Research Foundation of China (2018M630582)
Youth Project of Changzhou Health Commission (QN201928)
Received: 18 October 2020
Accepted: 25 February 2021
First Online: 6 March 2021
: All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Because no information that would allow identification of the patient was collected, individual patient consent was not required from patients. The study protocol was approved by the ethics committee of The Affiliated Drum Tower Hospital of Nanjing University Medical School (IRB number: 2018–173-01) with a waiver of informed consent.
: Not applicable.
: All authors declared no financial conflicts of interest.