| Affiliation: | 1. Department of Neurosurgery, Seoul National University Boramae Medical Center, 5 Gil 20, Boramae-Road, Dongjak-Gu, Seoul 110-744, Korea;2. Department of Radiology and the Institute for Metabolic Disease, Wonkwang University School of Medicine, Shinyong-Dong, Iksan, Jeonbuk 344-2, Korea;3. Department of Neurosurgery, Seoul National University College of Medicine, 101 Daehak-no, Jongno-gu, Seoul 110-744, Korea;4. Department of Neurosurgery, Clinical Research Institute, Seoul National University Hospital, 101 Daehak-no, Jongno-gu, Seoul 110-744, Korea |
