1. Neuroprotection Research Laboratory, Departments of Neurology and Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
2. Stroke and Neurovascular Regulation Laboratory, Departments of Neurology and Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
3. Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA
4. Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA