1. Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
2. Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
3. Department of Cardiac Anesthesiology and Critical Care Medicine, Massachusetts General Hospital, Boston, MA, USA
4. Department of Psychiatry, Center for Health Outcomes and Interdisciplinary Research, Massachusetts General Hospital, Boston, MA, USA
5. Department of Medicine, Cardiology Division, Massachusetts General Hospital and Baim Institute for Clinical Research, Boston, MA, USA
6. Beth Israel Deaconess Medical Center, Boston, MA, USA
7. Department of Radiology, Neuroradiology Division, Massachusetts General Hospital, Boston, MA, USA
8. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Charlestown, MA, USA
9. Department of Neurology, Boston University School of Medicine, Boston Medical Center, Boston, MA, USA