1. Shandong University of Traditional Chinese Medicine, Jinan, China
2. Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
3. Department of Spinal Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
4. Jinan Vocational College of Nursing, Jinan, China
5. Department of Orthopedics, Shandong Public Health Clinical Center Affiliated to Shandong University, Jinan, China