1. Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA
2. Rehabilitation Medicine Research Group, Department of Health Sciences, Lund University, Lund, Sweden
3. Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
4. Carey Law School, University of Pennsylvania, Philadelphia, PA, USA
5. Yale School of Medicine, New Haven CT, USA
6. Harvard Combined Orthopedic Residency Program, Boston, MA, USA
7. Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, USA
8. Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA