Wang, Zhao-qian
Zhang, Hai-xia
Wu, Wei
Yuan, You-sheng
Dou, Ya-na
Yin, Da
Li, Xin-sheng
Jia, Chong-fu
Article History
Received: 20 January 2021
Accepted: 22 April 2021
First Online: 24 May 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: The content of this study was approved by the Ethics Committee of the First Affiliated Hospital of Dalian Medical University, and consent was waived in view of the retrospective nature of the study and the routine nature of all of the included procedures.
: In view of the retrospective nature of this study and the routine nature of all of the procedures, written informed consent for inclusion in this study was waived.