1. Department of Cardiology
2. Fourth Affiliated Hospital of Harbin Medical University
3. Harbin
4. China
5. Department of Orthopaedics
6. First Affiliated Hospital of Harbin Medical University
7. The People's Hospital of Longhua
8. The Affiliated Hospital of Southern Medical University
9. Shenzhen
10. Xiamen Cardiovascular Hospital
11. Xiamen University
12. Xiamen