1Cecil G. Sheps Center for Health Services Research, University of North Carolina, Chapel Hill, North Carolina
2Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
3School of Social Work, University of North Carolina, Chapel Hill, North Carolina.
4Harvard Medical School, Boston, Massachusetts
5Hebrew SeniorLife, Boston, Massachusetts.
6Center for Nursing Excellence in Palliative Care, Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia.
7Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
8Division of Geriatric Medicine and Palliative Care Progam, University of North Carolina, Chapel Hill, North Carolina.