1 Discovery Center for Musculoskeletal Recovery, Schoen Adams Research Institute at Spaulding Rehabilitation, Boston, MA, USA.
2 Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA.
3 Medical Scientist Training Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
4 Cellular and Molecular Pathology Graduate Program, University of Pittsburgh, Pittsburgh, PA, USA.
5 Department of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, MA, USA.
6 Department of Geriatric Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
7 Department of Social and Behavioral Sciences, Yale School of Public Health, Yale University, New Haven, CT, USA.
8 Department of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
9 Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
10 Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, Boston, MA, USA.
11 Department of Physical Medicine and Rehabilitation, Brigham and Women's Hospital, Boston, MA, USA.
12 Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
13 Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, USA.
14 Discovery Center for Musculoskeletal Recovery, Schoen Adams Research Institute at Spaulding Rehabilitation, Boston, MA, USA. fambrosio@mgh.harvard.edu.
15 Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA. fambrosio@mgh.harvard.edu.
16 Department of Physical Medicine & Rehabilitation, Harvard Medical School, Boston, MA, USA. fambrosio@mgh.harvard.edu.