1. Program in Physical Therapy and Department of Neurology Wayne State University Detroit Michigan USA
2. Centre for Trials Research Cardiff University Cardiff UK
3. Department of Physical Therapy Stony Brook University Stony Brook New York USA
4. Department of Rehabilitation & Regenerative Medicine (Program in Physical Therapy), GH Sergievsky Center Columbia University Irving Medical Center New York New York USA
5. Division of Physical Therapy School of Health and Rehabilitation Sciences, Ohio State University Columbus Ohio USA
6. Department of Biobehavioral Sciences Teachers College, Columbia University New York New York USA