1. Basic Medical School, Chengdu University, Chengdu, China
2. Department of Pathology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
3. Department of Medicine, North Sichuan Medical College, Nanchong, China
4. Affiliated Hospital of Chengdu University of T. C. M./Clinical Medical College, Chengdu University of T. C. M., Chengdu, China
5. Department of Pathology, Chengdu Third People’s Hospital, Chengdu, China