1. Department of Emergency Medicine, China-Japan Union Hospital of Jilin University, Changchun, China.
2. Department of Radiology, and China-Japan Union Hospital of Jilin University, Changchun, China.
3. Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, China.
4. Department of Ophthalmology, The First Hospital of Jilin University, Changchun, China.
5. Department of Obstetrics and Gynecology, and China-Japan Union Hospital of Jilin University, Changchun, China.
6. Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China.