1. Department of Neurology Wake Forest School of Medicine Winston‐Salem North Carolina USA
2. Department of Neurology, Donders Institute for Brain Cognition and Behaviour, Radboud University Medical Center Nijmegen The Netherlands
3. Ohio State Department of Physical Medicine and Rehabilitation Columbus Ohio USA
4. Department of Physical Medicine and Rehabilitation Mayo Clinic Rochester Minnesota USA
5. Division of Physical Medicine and Rehabilitation, Department of Neurology Texas Tech University Health Sciences Center Lubbock Texas USA