1. Department of Cardiology & National Clinical Research Center for Geriatric DiseaseChinese PLA General Hospital Beijing China
2. Department of Cardiology, Cangzhou Central HospitalHebei Medical University Cangzhou China
3. Department of Computer ScienceTsinghua University Beijing China
4. Department of Biomedical EngineeringChinese PLA General Hospital Beijing China
5. Department of Cardiology, Xijing HospitalFourth Military Medical University Xi'an China
6. Department of CardiologyGeneral Hospital of Northern Theater Command Shenyang China