Affiliation: | (1) Department of Neurosurgery, Inha University School of Medicine, Incheon, Republic of Korea;(2) Department of Neurosurgery, Ajou University School of Medicine, Suwon, Republic of Korea;(3) Department of Neurosurgery, Seoul St. Mary’s Hospital, The Catholic University of Korea, 505, Banpo-Dong, Seocho-Gu, 137-701 Seoul, Republic of Korea; |