KATANO Hiroyuki; UMEMURA Atsushi; TANIKAWA Motoki; SAKATA Tomohiro; NAGAI Takumi; NISHIKAWA Yusuke; AIHARA Noritaka; MASE Mitsuhito; KANAI Hideki; YAMADA Kazuo; Hiroyuki KATANO; Atsushi UMEMURA; Motoki TANIKAWA; Tomohiro SAKATA; Takumi NAGAI; Yusuke NISHIKAWA; Noritaka AIHARA; Mitsuhito MASE; Hideki KANAI; Kazuo YAMADA; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine; Department of Neurosurgery Nagoya City University Graduate School of Medicine Nosotchu no Geka Kenkyukai koenshu 32- (3) 183 -188 2004/05