1. Orthopedics Department, Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan 646600, P.R. China
2. School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
3. Department of Dermatology, the Second Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong 510403, P.R. China