Liu, Anlei
Sun, Ruixue
Cao, Guanghui
Liu, Xiaohang
Zhu, Huadong
Yang, Jing
Article History
Received: 1 March 2022
Accepted: 6 June 2022
First Online: 14 June 2022
Declarations
:
: All methods were performed in accordance with the relevant guidelines and regulations. The research was approved by the Ethics Committee of the Institutional Review Board at Peking Union Medical College Hospital (PUMCH, zs3400). The requirement for informed consent was waived by the Ethics Committee of the Institutional Review Board at Peking Union Medical College Hospital (PUMCH) because of the retrospective nature of the research.
: The authors declare that they have no competing interests.
: Not applicable.