Dong, Hong
Chi, Jinghan
Wang, Wei
Liu, Lei
Article History
Received: 15 December 2022
Accepted: 12 April 2023
First Online: 25 April 2023
Declarations
:
: The requirement of ethical approval for this was waived by the Institutional Review Board of The Second Medical Center of PLA General Hospital, because the data was accessed from NVSS (a publicly available database). All individuals provided written informed consent before participating in the study. All methods were carried out in accordance with relevant guidelines and regulations (declaration of Helsinki).
: Not applicable.
: The authors declare that they have no competing interests.