[1] Fudan Univ, Sch Nursing, Shanghai, Peoples R China
[2] Duke Univ, Sch Med, Duke Canc Inst, Dept Populat Hlth Sci & Pediat, Durham, NC USA
[3] Clemson Univ, Sch Nursing, Clemson, SC USA
[4] George Washington Univ, Childrens Natl Hosp, Div Oncol, Washington, DC USA
[5] George Washington Univ, Dept Pediat, Washington, DC USA
[6] Dept Pediat Oncol, Boston, MA USA
[7] Dana Farber Canc Inst, Ctr Populat Sci, Boston, MA USA
[8] Boston Childrens Hosp, Boston, MA USA
[9] Childrens Hosp, Med Ctr, Div Pediat Palliat Care, Omaha, NE USA
[10] Childrens Hosp, Med Ctr, Div Pediat Oncol, Omaha, NE USA
[11] George Washington Univ, Childrens Natl Hosp, Dept Nursing Sci Profess Practice & Qual, Washington, DC USA
[12] Univ Pittsburgh, Sch Med, Dept Pediat, Pittsburgh, PA USA
[13] UPMC Childrens Hosp Pittsburgh, Div Palliat Med & Support Care, Pittsburgh, PA USA
[14] St Jude Childrens Res Hosp, Div Qual Life & Palliat Care, Memphis, TN USA
[15] Childrens Natl Hosp, Div Biostat & Study Methodol, Washington, DC USA
[16] George Washington Univ, Sch Med & Hlth Sci, Washington, DC USA
[17] Childrens Natl Hosp, Dept Nursing Sci Profess Practice & Qual, 111 Michigan Ave,NW, Washington, DC 20010 USA