[1] Washington Univ, Dept Pediat, Div Hematol & Oncol, St Louis, MO 63130 USA
[2] Childrens Hosp Philadelphia, Dept Med Eth, Philadelphia, PA 19104 USA
[3] UCL, Great Ormond St Inst Child Hlth, Louis Dundas Ctr Childrens Palliat Care, London, England
[4] Rutgers State Univ, Dept Anthropol Sociol & Criminal Justice, Camden, NJ USA
[5] Stanford Univ, Dept Pediat, Sch Med, Stanford, CA 94305 USA
[6] Childrens Natl Hlth Syst, Dept Nursing Res & Qual Outcomes, Washington, DC USA
[7] Dana Farber Canc Inst, Dept Psychosocial Oncol & Palliat Care, Boston, MA 02115 USA
[8] Boston Childrens Hosp, Dept Pediat, Boston, MA USA