1. From the Department of Dermatology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China.
2. Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
3. Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China.