1. State Key Laboratory of Rare Earth Resource Utilization
2. Changchun Institute of Applied Chemistry
3. Chinese Academy of Sciences
4. Changchun 130022
5. P. R. China
6. Department of Radiology
7. The Second Hospital of Jilin University
8. Changchun 130041
9. China
10. Department of General Surgery
11. The First Hospital of Jilin University
12. Changchun 130021