[1] Seattle Childrens Res Inst, Palliat Care & Resilience Lab, 1920 Terry Ave,CURE 4, Seattle, WA 98101 USA
[2] Univ Washington, Cambia Palliat Care Ctr Excellence, Seattle, WA 98195 USA
[3] Seattle Childrens Res Inst, Ctr Child Hlth Behav & Dev, Seattle, WA 98101 USA
[4] Univ Washington, Sch Med, Dept Pediat, Div Gen Pediat, Seattle, WA 98195 USA
[5] Seattle Childrens Res Inst, Biostat Epidemiol & Analyt Res Program, Seattle, WA USA
[6] Univ Washington, Sch Med, Dept Pediat, Div Hematol Oncol, Seattle, WA 98195 USA