1. The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou
2. Department of Liver Disease, Ningbo No. 2 Hospital
3. Department of Radiology, Ningbo No. 2 Hospital, Ningbo
4. The First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou
5. Department of General Surgery, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China