1. Department of Neurosurgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang;
2. Department of Neurology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul;
3. Department of Ophthalmology, Apgujung St. Mary’s Eye Center, Seoul;
4. Department of Radiology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul; and
5. Department of Neurosurgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea