Chen Y, Chen XY, Jakeman LB, Chen L, Stokes BT, Wolpaw J. Operant conditioning of H-reflex can correct a locomotor abnormality after spinal cord injury in rats. The Journal of neuroscience : the official journal of the Society for Neuroscience [Internet]. 2006;26:12537?12543. http://www.ncbi.nlm.nih.gov/pubmed/17135415