He, Yanglan
Yuan, Shanshan
Guo, Xiaozhong
Yi, Fangfang
Xu, Xiangbo
An, Yang
Xu, Shixue
Ageno, Walter
Qi, Xingshun
Article History
Received: 18 February 2021
Accepted: 25 May 2021
First Online: 7 June 2021
Declarations
:
: This study was conducted in accordance with the Declaration of Helsinki and was reviewed and approved by the Medical Ethical Committee of General Hospital of Northern Theater Command. Written informed consent was waived by Medical Ethical Committee of General Hospital of Northern Theater Command. The approval number was Y (2021) 016.
: Not applicable.
: The authors declare that they have no competing interests.