1 From the Department of Neurology (J.P.), Jagiellonian University Medical College, Krakow, Poland; and Department of Neurology and Neurosurgery (Y.M.R.), Brain Center Rudolf Magnus, University Medical Center Utrecht, the Netherlands.
2 From the Department of Neurology (J.P.), Jagiellonian University Medical College, Krakow, Poland; and Department of Neurology and Neurosurgery (Y.M.R.), Brain Center Rudolf Magnus, University Medical Center Utrecht, the Netherlands. ij.m.ruigrok@umcutrecht.nl.