Received: 1 June 2021
Accepted: 28 October 2021
First Online: 19 November 2021
: This retrospective study was approved by the ethics committee of the Sixth Affiliated Hospital of Sun Yat-sen University (2019ZSLYC-202) and the requirement for informed patient consent was waived. All methods were performed in accordance with the relevant guidelines and regulations.
: This manuscript does not contain any individual person’s data in any form.
: The authors declare that they have no competing interests.