1. Center for Brain Plasticity and Recovery, Georgetown University Medical Center, Georgetown University, Washington, DC 20057
2. MedStar National Rehabilitation Hospital, Washington, DC 20010
3. Johns Hopkins University, Baltimore, MD 21218
4. Perelman School of Medicine at the University of Pennsylvania and Children’s Hospital of Philadelphia, Philadelphia, PA 19104
5. Children’s National Hospital and Center for Neuroscience, Washington, DC 20010