[1] Alder Hey Childrens NHS Fdn Trust, PICU, Liverpool, Merseyside, England
[2] Alder Hey Childrens NHS Fdn Trust, Childrens Nursing Res Unit, Liverpool, Merseyside, England
[3] Univ Cent Lancashire, Sch Hlth, Preston PR1 2HE, Lancs, England
[4] Univ Cape Town, Dept Paediat & Child Hlth, Cape Town, South Africa
[5] Hosp Sick Children, Crit Care Program, PICU, Toronto, ON M5G 1X8, Canada
[6] Hosp Sick Children, Res Inst, Dept Child Hlth Evaluat Sci, Toronto, ON M5G 1X8, Canada
[7] Boston Childrens Hosp, Dept Cardiovasc & Crit Care Serv, Boston, MA USA
[8] Harvard Univ, Sch Med, Boston, MA USA
[9] Royal Childrens Hosp, Dept Nursing Res, Melbourne, Vic, Australia
[10] Univ Melbourne, Sch Hlth Sci, Melbourne, Vic, Australia
[11] Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia
[12] Univ Plymouth, Fac Hlth & Human Sci, Sch Nursing & Midwifery, Plymouth PL4 8AA, Devon, England
[13] Curtin Univ, Fac Hlth Sci, Sch Nursing & Midwifery, Perth, WA 6845, Australia
[14] Univ Fed Sao Paulo, Escola Paulista Enfermagem, Dept Pediat Nursing, Sao Paulo, Brazil
[15] Ann & Robert H Lurie Childrens Hosp Chicago, Div Pediat Crit Care, Chicago, IL USA
[16] Univ Penn, Sch Nursing, Philadelphia, PA 19104 USA
[17] Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA