1 The KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, Toronto, Ontario M5G 2A2, Canada.
2 CRANIA, University Health Network and University of Toronto, Toronto, Ontario M5G 2A2, Canada.
3 Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada.
4 Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada.
5 Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada.
6 Department of Materials Science & Engineering, University of Toronto, Toronto, Ontario M5S 3E4, Canada.
7 Department of Neurosurgery, University Health Network, University of Toronto, Toronto, Ontario M5T 2S8, Canada.
8 Krembil Research Institute, Toronto, Ontario M5T 2S8, Canada.
9 The KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, Toronto, Ontario M5G 2A2, Canada cindi.morshead@utoronto.ca.
10 Department of Surgery, University of Toronto, Toronto, Ontario M5T 1P5, Canada.