1. Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University Jining Shandong China
2. Forensic Science Center of Jining Medical University Jining Shandong China
3. Department of Cardiology Qingdao Municipal Hospital Qingdao Shandong China
4. Department of Cardiovascular Medicine Tengzhou Central People's Hospital Tengzhou Shandong China
5. Department of Cardiology Jining No. 1 People's Hospital Jining Shandong China
6. Department of Pain Treatment Jining No. 1 People's Hospital Jining Shandong China