1. Department of Radiology, Stroke and Neurological Disorders Centre, East-West Neo Medical Hospital, Kyung Hee University School of Medicine, Seoul, Korea.
2. Department of Neurosurgery, Stroke and Neurological Disorders Centre, East-West Neo Medical Hospital, Kyung Hee University School of Medicine, Seoul, Korea.
3. Department of Ophthalmology, Medical Center, Kyung Hee University School of Medicine, Seoul, Korea.
4. Department of Radiology, Medical Center, Kyung Hee University School of Medicine, Seoul, Korea.