1. Departments of Neurology and Molecular Genetics, University of Medicine and Dentistry of New Jersey–Robert Wood Johnson Medical School, Camden, NJ
2. Department of Neurosurgery, University of Minnesota, Minneapolis, MN
3. Department of Neurology, New York University, New York, NY
4. Department of Neuroradiology, University of Pennsylvania, Philadelphia, PA
5. Department of Biostatistics, Children's Hospital of Pennsylvania, Philadelphia, PA