[1
]
Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital,
Harvard Medical School, Boston, MA; Department of Physical Medicine and Rehabilitation,
Massachusetts General Hospital, Harvard Medical School, Boston, MA; Division of Physical
Medicine and Rehabilitation, Department of Medicine, Newton Wellesley Hospital, Newton,
MA. Electronic address: pbgerrard@gmail.com.
[2
]
Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital,
Harvard Medical School, Boston, MA; Department of Physical Medicine and Rehabilitation,
Massachusetts General Hospital, Harvard Medical School, Boston, MA.
[3
]
Health and Disability Research Institute, Boston University School of Public Health,
Boston, MA.