1 The Second School of Clinical Medicine, Zhujiang Hospital, Southern Medical University, 510282 Guangzhou, China.
2 State Key Laboratory of Complex Severe and Rare Diseases, Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, 100730 Beijing, China. Electronic address: liujiawei89@sina.cn.