1. Department of Dermatology, Gongli Hospital, The Second Military Medical University, Shanghai 200135, P.R. China
2. Department of Dermatology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
3. Department of Dermatology, Central Hospital of Shanghai Minhang District, Shanghai 201100, P.R. China
4. Department of Dermatology, Tenth People's Hospital of Tongji University, Shanghai 200072, P.R. China
5. Department of Dermatology, Dahua Hospital of Xuhui District, Shanghai 200237, P.R. China