Affiliation: | (1) Department of Diagnostic Radiology, Asan Medical Centre, University of Ulsan College of Medicine, 388-1 PoongNap-Dong, SongPa-Ku, 138-040 Seoul, Korea;(2) Department of Radiology, DanKuk University College of Medicine, Choongnam, Korea;(3) Department of Radiology, Hallym University College of Medicine, Kangwon, Korea;(4) Department of Neurology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea;(5) Department of Neurological Surgery, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Korea |