1. Department of pathology, Affiliated to the Third Hospital, Second Military Medical University, Shanghai, P.R. China
2. Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
3. Department of general surgery, Affiliated to the Third Hospital, Second Military Medical University, Shanghai, P.R. China
4. Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China