1 Center for Health Outcomes and Interdisciplinary Research (CHOIR), Massachusetts General Hospital, Boston, Massachusetts, USA kjochimsen@mgh.harvard.edu.
2 Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA.
3 Department of Physical Therapy Education, Elon University, Elon, North Carolina, USA.
4 DCRI, Duke University, Durham, North Carolina, USA.
5 Brooks Rehabilitation, Jacksonville, Florida, USA.
6 Department of Physical Therapy, College of Public Health & Health Professions, University of Florida, Gainesville, Florida, USA.
7 Department Health Kinesiology and Applied Physiology, Concordia University, Montreal, Quebec, Canada.
8 Doctor of Physical Therapy Division, Department of Orthopedic Surgery, Duke University, Durham, North Carolina, USA.
9 Department of Sports Medicine, United States Olympic and Paralympic Committee, Colorado Springs, Colorado, USA.
10 United States Coalition for the Prevention of Illness and Injury in Sport, Lake Placid, New York, USA.
11 Department of Physical Medicine and Rehabilitation, University of Utah, Salt Lake City, Utah, USA.
12 School of Medicine, Keele University, Newcastle-under-Lyme, England, UK.
13 Duke University, Durham, North Carolina, USA.
14 Department of Exercise and Sport Science, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.

No abstract available