[1] Univ Tokyo, Sch Hlth Sci & Nursing, Grad Sch Med, Dept Family Nursing, Tokyo, Japan
[2] Univ Tokyo, Grad Sch Med, Div Nursing Syst, Dept Hlth Qual & Outcome Res,Global Nursing Res C, Tokyo, Japan
[3] Kyoto Univ, Dept Pediat, Grad Sch Med, Kyoto, Kyoto, Japan
[4] Saitama Childrens Med Ctr, Dept Hematol Oncol, Saitama, Saitama, Japan
[5] Tokyo Metropolitan Childrens Med Ctr, Dept Hematol Oncol, Fuchu, Tokyo, Japan
[6] Kurume Univ, Sch Med, Dept Pediat, Kurume, Fukuoka, Japan