Shackleton, C., Evans, R., Shamley, D., West, S., & Albertus, Y. (2019). Effectiveness of over-ground robotic locomotor training in improving walking performance, cardiovascular demands, secondary complications and user-satisfaction in individuals with spinal cord injuries: A systematic review. Journal of Rehabilitation Medicine, 51(10), 723–733. https://doi.org/10.2340/16501977-2601