1. Sheryl E. Davis, OTR, is Research Occupational Therapist, Shriners Hospitals for Children, 8400 Roosevelt Boulevard, Philadelphia, Pennsylvania 19152
2. M. J. Mulcahey, MS, OTR, is Clinical Coordinator of Research, Shriners Hospitals for Children, Philadelphia, Pennsylvania
3. Randal R. Betz, MD, is Medical Director, Spinal Cord Injury Program and Research, Shriners Hospitals for Children, Philadelphia, Pennsylvania
4. Brian T. Smith, MS, is Research Engineer, Shriners Hospitals for Children, Philadelphia, Pennsylvania
5. Albert A. Weiss, MD, is Associate Professor of Orthopedic Surgery, Allegheny University Hospitals, Philadelphia, Pennsylvania