1. Department of Dermatology Xiangya Hospital Central South University Changsha China
2. Hunan Engineering Research Center of Skin Health and Disease Central South University Changsha China
3. Hunan Key Laboratory of Skin Cancer and Psoriasis Central South University Changsha China
4. Department of Gastroenterology Xiangya Hospital Central South University Changsha China
5. Department of Social Medicine and Health Management Xiangya School of Public Health Central South University Changsha China