[1] Tokai Univ, Sch Med, Dept Mol Life Sci Basic Med Sci & Mol Med, Hiratsuka, Kanagawa 25912, Japan
[2] Tokai Univ Hosp, Dept Clin Genet, Hiratsuka, Kanagawa, Japan
[3] Tokai Univ, Sch Med, Dept Obstet & Gynecol, Hiratsuka, Kanagawa 25912, Japan
[4] Tokai Univ, Sch Med, Dept Internal Med, Div Neurol, Hiratsuka, Kanagawa 25912, Japan
[5] Natl Hakone Hosp, Dept Neurol, Odawara, Kanagawa, Japan
[6] Natl Ctr Neurol & Psychiat, Dept Mental Retardat & Birth Defect Res, Tokyo, Japan
[7] Univ Western Australia, Ctr Forens Sci, Nedlands, WA 6009, Australia