Xu, Yang
Liu, Wen-jie
Wang, Xia
Yang, Qian-mei
Article History
Received: 9 February 2023
Accepted: 16 October 2023
First Online: 25 October 2023
Declarations
:
: Before the study began, we had carefully consulted the Ethics Committee and Institutional Review Board of West China Hospital. They suggested that this study did not involve special interventions for the participants, and we should conduct this study in compliance with the Helsinki Declaration and inform the participants fully of the purpose of the study. So, all data was fully anonymised at source with researchers. The need for Informed Consent was waived by the Ethics Committee and Institutional Review Board of West China Hospital due to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.