1. From the Department of Neuropsychiatry (C.I., F.Y., K.M., M.S., T.A.), Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan; and the Department of Neuropsychiatry, Neuroscience (S.T.), Ehime University Graduate School of Medicine, Shitsukawa, Toon-city, Ehime, Japan.