1. Department of Dermatology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses and National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
2. Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
3. Department of Dermatology, Shunyi Maternal and Children’s Hospital of Beijing Children’s Hospital, Beijing 101300, China