[1] Fudan Univ, Sch Nursing, 305 Fenglin Rd, Shanghai 200032, Peoples R China
[2] Fudan Univ, Canc Hosp, Dept Nursing, 270 Dongan Rd, Shanghai 200000, Peoples R China
[3] Shanghai Jiao Tong Univ, Sch Med, Shanghai Childrens Med Ctr SCMC, Pediat Hematol Oncol Unit, 1678 Dongfang Rd, Shanghai 200127, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Med, Shanghai Childrens Med Ctr SCMC, Pediat Intens Care Unit, 1678 Dongfang Rd, Shanghai 200127, Peoples R China
[5] Univ Pittsburgh, Sch Nursing, 3500 Victoria St, Pittsburgh, PA 15261 USA
[6] Duke Univ, Sch Nursing, 307 Trent Dr, Durham, NC 27710 USA