1 Department of Physical Medicine and Rehabilitation, University of Minnesota , Minneapolis, MN , USA ; Department of Neurology, University of Minnesota , Minneapolis, MN , USA.
2 Department of Physical Medicine and Rehabilitation, University of Minnesota , Minneapolis, MN , USA.
3 Stroke Rehabilitation Research, Kessler Foundation , West Orange, NJ , USA.
4 Clinical Neurorehabilitation, Department of Neurology, University of Zurich , Zurich , Switzerland.
5 Department of Neurology, University of Minnesota , Minneapolis, MN , USA ; Department of Neurosurgery, University of Minnesota , Minneapolis, MN , USA.