1. Center for Coronary Artery Disease, Division of Cardiology, Beijing Anzhen Hospital, Capital Medical University , 2 Anzhen Road, Chaoyang District, Beijing 100029 , China
2. Department of Radiology, Beijing Anzhen Hospital, Capital Medical University , Beijing 100029 , China
3. Institute of Mechanobiology & Medical Engineering, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University , Shanghai 200240 , China
4. Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute , 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218 , USA
5. The VA Health Care System , 3801 Miranda Ave, Palo Alto, CA 94304 , USA