1. Guangzhou New Centre Institute of Vitiligo, Guangzhou, PR China;
2. Dongguan Eighth People’s Hospital & Dongguan Children’s Hospital, Dongguan, PR China;
3. Institute of Dermatology, Guangzhou Medical University, Guangzhou, PR China;
4. Department of Dermatology, Guangzhou Institute of Dermatology, Guangzhou, PR China;
5. Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China