Funding for this research was provided by:
the Science and technology project of Zhejiang Health Committee (2020KY663)
National Natural Science Foundation of China (81774070)
Received: 15 April 2021
Accepted: 21 September 2021
First Online: 4 October 2021
: Our study was approved by the medical ethics committee of the First Affiliated Hospital of Zhejiang Chinese Medicine University that waived the need for informed consent, due to its retrospective design. We confirm that all methods were carried out in accordance with relevant guidelines and regulations.
: Consent for publication was obtained from the participants.
: The authors declare no competing interests.