Received: 26 February 2021
Accepted: 3 August 2021
First Online: 13 August 2021
: The study was approved by the Clinical Research Ethics Committee of the Second Xiangya Hospital, Central South University (No. 2021-ERCR001) and individual informed consent for this retrospective analysis was waived. This study was performed in accordance with the 1964 Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.