Article History
Received: 15 December 2020
Accepted: 31 August 2021
First Online: 10 September 2021
Declarations
:
: This study was approved by the Ethics Committee of the First Affiliated Hospital of Soochow University. The approval number is 2020117. All patient records were anonymized and de-identified and the Ethics Committee waived the need for informed consent before analysis due to the retrospective nature of the data. This study conforms to the principles outlined in the Declaration of Helsinki.
: All patient records were anonymized and de-identified and the Ethics Committee waived the need for informed consent for publication due to the retrospective nature of the data.
: The authors declare that they have no competing interests.