Funding for this research was provided by:
Jilin Scientific and Technological Development Program (3D5204971429, 3D5197431429)
Youth Program of the National Natural Science Foundation of China (3A5205749429)
Received: 10 January 2021
Accepted: 20 July 2021
First Online: 11 August 2021
: For this retrospective study, institutional review board approval was obtained from the local Ethics Committee of the Second Hospital of Jilin University (Jilin, China). The requirement for informed consent from patients was waived in view of the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.