1. The First Department of Surgery; Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Zhejiang University of Traditional Chinese Medicine; Hangzhou, P.R.; China
2. Department of Radiation Oncology; Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University; Shanghai, P.R.; China
3. Department of Pathology; Yueyang Hospital, Shanghai University of Traditional Chinese Medicine; Shanghai, P.R.; China
4. Department of Pathology; Changhai Hospital and Institute of Liver Diseases, Second Military Medical University; Shanghai, P.R.; China