作者单位:Kyu-Sun Choi (1) Jung-Hyun Lee (1) Hyeong-Joong Yi (1) Hyoung-Joon Chun (1) Young-Jun Lee (2) Dong-Won Kim (3)
1. Department of Neurosurgery, Hanyang University Medical Center, 17 Haengdang-dong, Seongdong-gu, 133-792, Seoul, Korea 2. Department of Radiology, Hanyang University Medical Center, Seoul, Korea 3. Department of Anesthesia and Pain Medicine, Hanyang University Medical Center, Seoul, Korea