[1] Boston Univ, Sch Social Work, Boston, MA 02215 USA
[2] Brigham & Womens Hosp, Palliat Med Div, 75 Francis St, Boston, MA 02115 USA
[3] Vanderbilt Univ, Med Ctr, Div Cardiovasc Med, Nashville, TN USA
[4] Brigham & Womens Hosp, Dept Social Work, 75 Francis St, Boston, MA 02115 USA
[5] Brigham & Womens Hosp, Cardiovasc Div, 75 Francis St, Boston, MA 02115 USA