1. Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology , Shanghai, 200040 , P.R. China
2. Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College , Nanjing 210042 , P.R. China
3. Department of Biostatistics, School of Public Health, and The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University , Shanghai , China