1 Section of Palliative Care, Division of General Medicine and Primary Care, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
2 Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
3 Palliative Care Program, Department of Medicine, Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA.
4 Patient and Family Support Program at the Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
5 Department of Physical Medicine and Rehabilitation, Carolinas Rehabilitation, Charlotte, North Carolina, USA.
6 Department of Supportive Care, Levine Cancer Institute, Charlotte, North Carolina, USA.