[1] Catholic Univ Amer, Sch Nursing, Washington, DC 20064 USA
[2] Univ Iowa, Iowa City, IA USA
[3] Duke Univ, Sch Nursing, Durham, NC USA
[4] Duke Univ Hosp, Childrens Hlth Ctr, Durham, NC USA
[5] Univ Minnesota, Sch Nursing, Minneapolis, MN 55455 USA
[6] Univ Minnesota, Dept Pediat, Minneapolis, MN 55455 USA
[7] Univ Tennessee, Coll Nursing, Knoxville, TN USA
[8] Univ Alabama, Sch Nursing Birmingham, Birmingham, AL USA
[9] Univ Birmingham, Dept Pediat Hematol & Oncol, Childrens Hlth Syst, Birmingham, AL USA