1 Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, Jiangsu, China; Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
2 Department of Ultrasound, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
3 Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China.
4 Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China. tancheng@yeah.net.