1. Department of Dermatology; Union Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan 430022 Hubei P.R. of China
2. Department of Dermatology; the First Hospital of Wuhan; 430022 Hubei P.R. of China
3. Department of Dermatology; Huizhou Central Hospital; 516001 Guangdong P.R. of China