1. Departments of Radiology and Neurology, Neuroprotection Research Laboratory, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
2. YCU Center for Novel and Exploratory Clinical Trials (Y-NEXT), Yokohama City University Hospital, Yokohama, Japan
3. Department of Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan