1. Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
2. Department of Dermatology; Wuxi No. 2 People's Hospital; Jiangsu China
3. Department of Dermatology; Wuxi People's Hospital; Wuxi, Jiangsu China
4. Department of Dermatology; the Third Affiliated Hospital of Anhui Medical University and the First People's Hospital of Hefei; Anhui China