Funding for this research was provided by:
National Natural Science Foundation of China (81590955)
Received: 26 February 2021
Accepted: 28 August 2021
First Online: 7 September 2021
: The Ethics Committee of West China Hospital, Sichuan University approved this study design and waived the need of informed consent due to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.