1. Department of Psychiatry, Yamagata University School of Medicine, Iidanishi 2-2-2, Yamagata 990-9585, Japan
2. Department of Occupational Therapy, Fukushima Medical University School of Health Sciences, Sakaemachi 10-6,
Fukushima 960-8516, Japan
3. Department of Neuropsychiatry, Aizu Medical Center, Fukushima Medical University,
Kawahigashi 21-2, Aizuwakamatsu 969-3492, Japan
4. Department of Psychiatry, Nihonkai General Hospital, Akihocho
30, Sakata 998-8501, Japan
5. Department of Radiology, Yamagata University Hospital, Iidanishi 2-2-2, Yamagata 990-
9585, Japan
6. Department of Radiology, Division of Diagnostic Radiology, Yamagata University School of Medicine,
Iidanishi 2-2-2, Yamagata 990-9585, Japan