[1] Massachusetts Gen Hosp, Dept Anesthesia Crit Care & Pain Med, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Dept Palliat Care, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Dept Med Oncol, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Dept Psychiat, Boston, MA 02114 USA
[5] Massachusetts Gen Hosp, Dept Radiol, Boston, MA 02114 USA
[6] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[7] Harvard Univ, Sch Med, Dept Anesthesia Crit Care & Pain Med, Boston, MA USA
[8] Harvard Univ, Sch Med, Dept Palliat Care, Boston, MA USA
[9] Harvard Univ, Sch Med, Dept Med Oncol, Boston, MA USA
[10] Harvard Univ, Sch Med, Dept Psychiat, Boston, MA 02115 USA
[11] Harvard Univ, Sch Med, Dept Radiol, Boston, MA 02115 USA
[12] Harvard Univ, Sch Med, Dept Pathol, Boston, MA 02115 USA