1. Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, Gansu, China
2. The Second Clinical Medical College, Lanzhou Unversity, Lanzhou, Gansu, China
3. Gansu Printer Science and Technology Co. Ltd., Lanzhou, Gansu, China
4. Key Laboratory of Orthopedics Disease of Gansu Province, Lanzhou University Second Hospital, Lanzhou, Gansu, China
5. The International Cooperation Base of Gansu Province for The Pain Research in Spinal Disorders, Lanzhou, Gansu, China