[1
]Center for Bionic Medicine, Rehabilitation Institute of Chicago, Chicago, Illinois2Department
of Physical Medicine and Rehabilitation, Northwestern University, Chicago, Illinois3Department
of Biomedical Engineering, Northwestern University, Evanston, Illi
[2
]Center for Bionic Medicine, Rehabilitation Institute of Chicago, Chicago, Illinois3Department
of Biomedical Engineering, Northwestern University, Evanston, Illinois
[3
]Center for Bionic Medicine, Rehabilitation Institute of Chicago, Chicago, Illinois2Department
of Physical Medicine and Rehabilitation, Northwestern University, Chicago, Illinois
[4
]Center for Bionic Medicine, Rehabilitation Institute of Chicago, Chicago, Illinois