Document is current

Article History

Received: 9 August 2021

Revised: 23 December 2021

Accepted: 15 January 2022

First Online: 10 March 2022

Declarations

:

: The scientific guarantor of this publication is Zhen-guo Huang, Department of Radiology, China-Japan Friendship Hospital.

: The authors declare that they have no conflict of interest.

: No complex statistical methods were necessary for this paper.

: Written informed consent was obtained from all subjects (patients) in this study.

: This study was approved by the Ethics Committee of China-Japan Friendship Hospital. Institutional review board approval was obtained.

: • retrospective• observational• performed at one institution