1. Department of Emergency Medicine and Critical Care
2. Shanghai East Hospital
3. Tong Ji University
4. Shanghai 200120
5. People's Republic of China
6. Department of Ultrasound
7. Zhongda Hospital
8. School of Medicine
9. Southeast University
10. Nanjing
11. State Laboratory of High Performance Ceramics and Superfine Microstructure
12. Shanghai Institute of Ceramics
13. Chinese Academy of Sciences
14. Shanghai