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Volpe BT, Huerta PT, Zipse JL, Rykman A, Edwards D, Dipietro L, Hogan N, Krebs HI. Robotic devices as therapeutic and diagnostic tools for stroke recovery. Arch Neurol. 2009 Sep;66(9):1086-90. Review.
Sternad D, Park S-W, Müller H.and Hogan N (2010) Coordinate Dependence of Variability Analysis. PLoS Computational Biology 6(4):e1000751