1. From the Departments of Neurology (V.T., R.L., P.V.D., M.S.) and Radiology (C.S., P.D.), University Hospitals, Leuven, Belgium; the Vesalius Research Center (V.T., R.L., P.V.D.), VIB, Leuven, Belgium; and the Department of Neurology (A.G.), Heilig Hart Ziekenhuis, Tienen, Belgium.