1 Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodore Fontane, Dessau, Germany.
2 Department of Dermatology, Renji Hospital, Jiaotong University School of Medicine, Shanghai, P.R. China.
3 Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, P.R. China.