1. Department of Emergency
2. The First Affiliated Hospital of Dalian Medical University
3. Dalian
4. China
5. Department of Otolaryngology
6. The First Affiliated Hospital of China Medical University
7. Shenyang
8. Department of Special Medical Unit
9. Department of Geratology
10. Dalian Friendship Hospital Affiliated to Dalian Medical University
11. College of Life and Health Sciences
12. Northeastern University
13. Department of Cardiology
14. Department of Heart Intensive Care Unit