1. Berenson-Allen Center for Noninvasive Brain Stimulation, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
2. Non-Invasive Brain Stimulation and Human Motor Control Laboratory, Burke Medical Research Institute, Weill Cornell Medical College, White Plains, New York.
3. Department of Neurological Surgery, The Miami Project to Cure Paralysis, Lois Pope LIFE Centre, Miller School of Medicine, Miami, Florida.