Document is current
Any future updates will be listed below
-
Authors
Cheng, Hao
Wang, Guo-dong
Li, Tao
Liu, Xiao-yang
Sun, Jian-min
- License Information
-
More Information
Article History
Received: 24 February 2021
Accepted: 21 August 2021
First Online: 6 September 2021
Declarations
:
: This retrospective study was approved by the Medical Ethics Committee of Shandong Provincial Hospital and was conducted in accordance with the guidelines of the Declaration of Helsinki. Written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.
