1. Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics , Changsha , Hunan 410011 , China
2. Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University , Changsha , Hunan 410011 , China
3. Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics , #139 Renmin Middle Rd , Changsha , Hunan 410011 , China