1. Department of Neurology (KY, YU, NH, RT), Juntendo University School of Medicine, Tokyo; Department of Neurology (KY, TU), Juntendo University Urayasu Hospital, Chiba; Department of Neurology (TS, YI), Jikei University School of Medicine, Tokyo; Department of Neurology (CN, Kazumi Kimura), Nippon Medical School, Tokyo; Department of Neurology (YU), University of Yamanashi; Department of Stroke and Cerebrovascular Medicine (HK, TH), Kyorin University, Tokyo; Department of Cerebrovascular Medicine (TC...