1. Department of Physiatry Hospital for Special Surgery, Weill Cornell Medical College New York USA
2. Department of Neurology, Division of Physical Medicine & Rehabilitation St. Louis Missouri USA
3. Departments of Orthopaedic Surgery and Neurology, Division of Physical Medicine and Rehabilitation; Department of Surgery, Division of Public Health Sciences Chesterfield Missouri USA
4. Washington University School of Medicine St. Louis Missouri USA
5. Department of Psychiatry Washington University School of Medicine St. Louis Missouri USA
6. Departments of Orthopaedic Surgery and Neurology Division of Physical Medicine and Rehabilitation, Washington University in St. Louis School of Medicine St. Louis Missouri USA