1. Department of Dermatology and Venerology, West China Hospital, Sichuan University , Chengdu, Sichuan , China
2. Department of Dermatology, Sichuan FreSkin Hospital , Chengdu, Sichuan , China
3. Department of Dermatology, Xian FreSkin Hospital , Xian, Shanxi , China
4. Department of Dermatology, Changsha FreSkin Hospital , Changsha , Hunan , China
5. Department of Dermatology, Chongqing FreSkin Hospital , Chongqing , China
6. Department of Plastic Surgery, Sichuan FreSkin Hospital , Chengdu, Sichuan , China