Neurology 2014 May 25;82(21):1897-904. Epub 2014 Apr 25.
From the Department of Radiology and Research Institute of Radiology (L.B.Z., D.C.S., D.-G.L., S.J.K., D.H.L.) and Department of Neurology (J.S.K.), University of Ulsan, College of Medicine, and Department of Epidemiology and Biostatistics (S.H.), Asan Medical Center, Seoul, Korea; Department of Radiology (L.B.Z.), First Affiliated Hospital of Nanjing Medical University, Nanjing, China; and Department of Radiology (J.K.K.), Chung-Ang University, College of Medicine, Seoul, Korea.