1. Department of Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
2. Department of Internal Neurology, Tianjin Medical University General Hospital Airport Hospital, Tianjin 300308, P.R. China
3. Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
4. Department of Orthopedics, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China