1. The 4th Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, P. R. China
2. Department of Pathology, Liaoning Cancer Hospital & Institute, Shenyang, P. R. China
3. Department of Joint Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, P. R. China
4. The 2nd Department of Cardiology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, P. R. China
5. Department of Surgical Oncology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, P. R. China