1. Department of Immunology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, People's Republic of China.
2. Department of Pathology, Cheng Du Medical College, Chengdu, People's Republic of China.
3. Department of Liver and Vascular Surgery, The West China Hospital of Sichuan University, Chengdu, People's Republic of China.
4. Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, People's Republic of China.