1. Department of Gynecology and Obstetrics, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
2. Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
3. Departments of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
4. Orthopaedic Medical Center, The 2nd Hospital of Jilin University, Changchun, Jilin 130041, China
5. Department of Ophthalmology, The First Hospital of Jilin University, Changchun, Jilin 130041, China
6. Department of Emergency Medicine, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China
7. Departments of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, China