1. Kennedy Krieger Institute, Baltimore, Maryland.
2. Department of Occupational Therapy at Colorado State University, Fort Collins, Colorado.
3. Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, Baltimore, Maryland.
4. Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins School of Medicine, Baltimore, Maryland.
5. Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland.