1. AM Jette, PT, PhD, is Director, Health and Disability Research Institute, School of Public Health, Boston University, 580 Harrison Ave, 4th Floor, Boston, MA 02218 (USA)
2. SM Haley, PT, PhD, is Associate Director, Health and Disability Research Institute, School of Public Health, Boston University
3. W Tao, BS, is Graduate Research Associate, Health and Disability Research Institute, School of Public Health, Boston University
4. P Ni, MD, MPH, is Research Assistant Professor, Health and Disability Research Institute, School of Public Health, Boston University
5. R Moed, MBA, is President, CRE Care, LLC, Boston, Mass
6. D Meyers, MBA, is National Director of Trends and Outcomes, HealthSouth Outpatient Services, HealthSouth Corporation, Birmingham, Ala
7. M Zurek, PT, is Vice President of Clinical Quality, HealthSouth Outpatient Services, HealthSouth Corporation