1. Department of Neurology, Cang Zhou Central Hospital, Cangzhou, Hebei Province, China
2. Department of Magnetic resonance imaging, Cang Zhou Central Hospital, Cangzhou, Hebei Province, China
3. Department of Orthopedics, Cang Zhou Central Hospital, Cangzhou, Hebei Province, China
4. Department of Neurosurgery, the Fourth People’s Hospital of Taizhou, Jiangsu Province, China