Li, Chun-Qing
Zhang, Chen
Yu, Fan
Li, Xue-Ying
Wang, Dong-Xin
Article History
Received: 7 September 2021
Accepted: 17 December 2021
First Online: 3 January 2022
Declarations
:
: The Biomedical Research Ethics Committee of Peking University First Hospital in Beijing, China, reviewed and approved the study protocol (2019[296]), and agreed to waive the informed consent from the included patients considering the purely observational study design and that no patient follow-up was performed. All methods were performed in accordance with relevant guidelines and regulations.
: Not applicable.
: None of the authors have any conflicts of interest to declare.