1. Department of Dermatology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China;
2. Department of Dermatology, Fujian Branch of Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Fuzhou, China;
3. Department of Dermatology, Guizhou Branch of Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Guiyang, China