1. From the Department of Radiology (S.P.F., M.E.S.S., R.B., C.B.L.M.M.), Academic Medical Center, Amsterdam, the Netherlands; Department of Neurology (G.J.E.R.), Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht, the Netherlands; Department of Radiology (W.H.Z.), Maastricht University Medical Center, Maastricht, the Netherlands; Department of Radiology (B.K.V., G.A.P.K.), University Medical Center, Utrecht, the Netherlands; Department of Radiology (W.J.J.v.R., M.S.), St....