1. Physical Therapy DepartmentMultiple Sclerosis Foundation Madrid Spain
2. National Brain Rehabilitation Research Center, Gainesville Veterans Affairs Medical CenterNorth Florida/South Georgia Veterans Health System Gainesville FL
3. Department of Neurology, College of MedicineUniversity of Florida Gainesville FL
4. Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine Department, Faculty of Health SciencesRey Juan Carlos University Madrid Spain