[1] Fukushima Med Univ, Dept Biochem, 1 Hikarigaoka, Fukushima, Fukushima 9601295, Japan
[2] Fukushima Med Univ, Dept Neurosurg, 1 Hikarigaoka, Fukushima, Fukushima 9601295, Japan
[3] Fukushima Med Univ, Preparing Sect, Sch Hlth Sci, 1 Hikarigaoka, Fukushima, Fukushima 9601295, Japan
[4] Fukushima Med Univ, Human Life Sci, 1 Hikarigaoka, Fukushima, Fukushima 9601295, Japan
[5] Sanno Hosp, Dept Neurosurg, Minato Ku, 8-10-16 Akasaka, Tokyo 1070052, Japan
[6] RIKEN, Syst Glycobiol Res Grp, Struct Glycobiol Team, Global Res Cluster, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
[7] Juntendo Univ, Dept Neurosurg, Bunkyo Ku, 2-1-1 Hongo, Tokyo 1138421, Japan
[8] Mihara Mem Hosp, Div Neurol, Isezaki City, Gunma 3720006, Japan
[9] Fukushima Med Univ, Dept Forens Med, Sch Med, 1 Hikarigaoka, Fukushima, Fukushima 9601295, Japan
[10] Tohoku Med & Pharmaceut Univ, Lab Pharmaceut Phys Chem, Aoba Ku, 4-4-1 Komatsushima, Sendai, Miyagi 9818558, Japan