1. Department of Anesthesiology Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine Cangzhou China
2. Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing) Yunhe District Cangzhou City China
3. Department of Anesthesiology, Cangzhou Central Hospital Hebei Medical University Cangzhou China
4. Department of Neurosurgery Cangzhou Central Hospital, Hebei Medical University Cangzhou China
5. Department of Gerontology Cangzhou Central Hospital Cangzhou China
6. Department of Anesthesiology School and Hospital of Stomatology, China Medical University Shenyang China