1. State Key Laboratory of Organic-Inorganic Composites
2. Beijing Laboratory of Biomedical Materials
3. Beijing University of Chemical Technology
4. Beijing 100029
5. P. R. China
6. School and Hospital of Stomatology
7. Tianjin Medical University
8. Tianjin 300070
9. Department of Cardiology
10. Beijing Hospital
11. Beijing 100730