1. State Key Laboratory of Biotherapy and Cancer Center
2. West China Hospital
3. Sichuan University and Collaborative Innovation Center for Biotherapy
4. Chengdu 610041
5. P. R. China
6. School of Pharmacy
7. Shanghai Jiao Tong University
8. Shanghai 200240
9. Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
10. National Institute of Biomedical Imaging and Bioengineering (NIBIB)
11. National Institutes of Health (NIH)
12. Bethesda
13. USA