[1] Fujita Hlth Univ, Sch Med, Dept Comprehens Strokol, Toyoake, Aichi, Japan
[2] Kyoto Univ, Grad Sch Med, Dept Neurosurg, Kyoto, Japan
[3] Kokura Mem Hosp, Stroke Ctr, Dept Neurosurg, Fukuoka, Japan
[4] Kyoto Univ, Grad Sch Med, Dept Hematol & Oncol, Kyoto, Japan
[5] Kanazawa Univ, Dept Clin Lab Sci, Grad Sch Med Sci, Kanazawa, Ishikawa, Japan