1. Laboratory of Pathology Hebei Medical University Shijiazhuang China
2. Department of Pathology The Second Hospital, Hebei Medical University Shijiazhuang China
3. Department of Pathology Hebei Chest Hospital Shijiazhuang China
4. Department of Dermatology, School of Medicine University of California Davis CA USA
5. Department of Pharmacology Hebei Medical University Shijiazhuang China