1. KITE Research Institute, 520 Sutherland Dr, Toronto, ON M4G 3V9, Canada
2. Faculty of Medicine, University of Toronto, Medical Sciences Building, 1 King’s College Cir, Toronto, ON M5S 1A8, Canada
3. Department of Veterans Affairs Rehabilitation, Research, and Development Service, Spinal Cord Damage Research Center, Bronx, NY 10468, USA
4. Department of Medicine: Rheumatology, Medical College of Georgia, Augusta University, 1120 15th St, Augusta, GA 30912, USA
5. Department of Rehabilitation Medicine, University of Minnesota, 500 Harvard St SE, Minneapolis, MN 55455, USA