[1] Univ Washington, Dept Pediat, Div Hematol Oncol, Sch Med, Seattle, WA 98105 USA
[2] Seattle Childrens Res Inst, Ctr Clin & Translat Res, Palliat Care & Resilience Lab, Seattle, WA 98101 USA
[3] Univ Washington, Cambia Palliat Care Ctr Excellence, Seattle, WA 98195 USA
[4] Seattle Childrens Res Inst, Ctr Clin & Translat Res, Treuman Katz Ctr Bioeth, Seattle, WA 98101 USA
[5] Univ Washington, Dept Pediat, Div Crit Care Med, Sch Med, Seattle, WA 98105 USA
[6] Univ Calif San Francisco, Sch Med, San Francisco, CA 94143 USA
[7] Univ Washington, Dept Pediat, Div Bioeth Palliat Care, Sch Med, Seattle, WA 98105 USA