Received: 9 June 2021
Accepted: 9 December 2021
First Online: 21 December 2021
: Research has been conducted in accordance with the Declaration of Helsinki (as revised in 2013). The Ethics Committee of the First Affiliated Hospital of Sun Yat-sen University approved the study protocol (No.  208) and waived the individual written informed consent for this retrospective analysis.
: Not applicable.
: The authors declare that they have no competing interests.