1. Institute of Lifestyle Medicine, Spaulding Rehabilitation Hospital, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital, 300, 1st Avenue, Boston, MA 02129, USA.
2. Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA.
3. VA Boston Healthcare System, Harvard Medical School, Boston, MA 02130, USA.
4. Spaulding Rehabilitation Hospital, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA 02129, USA.
5. VA Boston Healthcare System, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA 02130, USA.
6. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.