1. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
2. CAS Center for Excellence in Nanoscience
3. National Center for Nanoscience and Technology
4. Beijing 100190
5. P. R. China
6. Department of Clinical Laboratory
7. Beijing Haidian Hospital
8. Haidian Section of Peking University Third Hospital
9. Beijing 100080