Xiao-Feng Liu1, Yan-Hua Wu2, Hui-Min Wang3. 1. The Second Clinical College of Guangzhou University of TCM, 12 Airport Road, Baiyun District, Guangzhou, 510405, Guangdong, China. 2. Clinical Medical College of Acupuncture, Moxibustion and Rehabilitation of Guangzhou University of TCM, 12 Airport Road, Baiyun District, Guangzhou, 510405, Guangdong, China. 3. Department of Orthopaedic, Guangdong Provincial Hospital of TCM, 36 Li Hai Road, Yong An Street, Fangcun District, Guangzhou, 510370, Guangdong, China. 124249045@qq.com.