From the Departments of Neurology (S.R., S.J.K., O.Y.B.) and Radiology (J.C., J.W.C., K.H.K., P.J.), Laboratory Medicine and Genetics (C.-S.K.), and Neurosurgery (J.-S.K., S.-C.H.), Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. (At 2014-08)
