Affiliation: | (1) Present address: Department of Neurology, North Shore University Hospital, 11030 Manhasset, NY, USA;(2) Department of Neurosurgery, Hokkaido University School of Medicine, North 15 West 7, Kita-ku, 060 Sapporo, Japan;(3) Department of Neurosurgery, Hokkaido University School of Medicine, North 15 West 7, Kita-ku, 060 Sapporo, Japan;(4) Department of Dermatology, Hokkaido University School of Medicine, 060 Sapporo, Japan;(5) Department of Pediatrics, Hokkaido University School of Medicine, 060 Sapporo, Japan |