[1] City Univ London, Nursing Sch Hlth Sci, London, England
[2] Griffith Univ, Menzies Hlth Inst Queensland, Nathan, Qld 4111, Australia
[3] Griffith Univ, Sch Nursing & Midwifery, Nathan, Qld 4111, Australia
[4] Princess Alexandra Hosp, Intens Care Unit, Woolloongabba, Qld, Australia
[5] Griffith Univ, Menzies Hlth Inst Queensland, NHMRC Ctr Res Excellence Nursing NCREN, Nathan, Qld 4111, Australia
[6] Princess Alexandra Hosp, Woolloongabba, Qld, Australia
[7] Royal Darwin Hosp, Natl Crit Care Trauma Response Ctr, Tiwi, NT, Australia
[8] Univ East Anglia, Norwich Med Sch, Hlth Econ, Norwich, Norfolk, England
[9] Griffith Univ, Sch Med, Nathan, Qld 4111, Australia
[10] Univ Queensland, Sch Pharm, Brisbane, Qld 4072, Australia
[11] Humboldt Univ, Charite Hosp, Berlin, Germany
[12] Univ Penn, Sch Nursing, Philadelphia, PA 19104 USA