1. Department of Genetic Medicine, Weill Cornell Medical College, New York, NY 10065.
2. Department of Pediatrics, Weill Cornell Medical College, New York, NY 10065.
3. Department of Radiology, Weill Cornell Medical College, New York, NY 10065.
4. Department of Public Health, Weill Cornell Medical College, New York, NY 10065.
5. Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065.