Department of Dermatology Xiangya Hospital The Central South University Changsha 410008 Hunan China;
The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health Xiangya Hospital Central South University Changsha Hunan 410078 China;
The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education Cancer Research Institute Central South University Changsha Hunan 410078 China;
Hunan Provincial Cancer Hospital and Cancer Hospital Affiliated to Xiangya Medical School The Central South University Changsha Hunan 410013 China;
Department of Laboratory Medicine and Pathology University of Minnesota Minneapolis MN 55455 USA;