1. Cardiology Division, Massachusetts General Hospital and Harvard Medical School, MA, USA
2. Cardiovascular Imaging Research Center, Boston, MA, USA
3. Department of Nuclear Medicine, First Hospital of China Medical University, Shenyang, Liaoning Province, China
4. Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
5. Department of Psychology, Tufts University, Medford, MA, USA
6. Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA