1. Department of Dermatology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
2. Department of Dermatology, The Second Affiliated Hospital of Henan University of Chinese Medicine, Henan Provincial Hospital of Chinese Medicine, Henan, Zhengzhou 450000, P.R. China