Feng, Yizhou
Chen, Xiaojing
Schaufelberger, Maria
Zhang, Qing
Fu, Michael
Funding for this research was provided by:
the Science and Technology Project of Sichuan Province (2020YFS0241)
Article History
Received: 15 October 2021
Accepted: 1 March 2022
First Online: 8 March 2022
Declarations
:
: This is a retrospective data analysis of two registries which were approved by the Chinese Ethics Committee of Registering Clinical Trials (West China Hospital) and the Ethics Committees of the University of Gothenburg. Informed consent was obtained from all participants or, if participants were dead, from a next of kin and/or legal guardian. The present study does not involve personal privacy. The study protocol was approved by Ethics Committee of West China Hospital (2017Y-480), all methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors have no conflicts of interest to disclose. All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest, or non-financial interest in the subject matter or materials discussed in this manuscript.