[1] Australian Natl Univ, Sch Med & Psychol, Canberra, Australia
[2] Canberra Hosp, Intens Care Unit, Canberra, Australia
[3] Australian Natl Univ, Biol Data Sci Inst, Coll Sci, Canberra, Australia
[4] Australian Natl Univ, Res Sch Psychol, Canberra, Australia
[5] Univ New England, Sch Psychol, Armidale, NSW, Australia
[6] Royal Adelaide Hosp, Intens Care Unit, Adelaide, Australia
[7] Univ Adelaide, Fac Hlth & Med Sci, Adelaide, Australia
[8] Univ Sydney, Nepean Clin Sch, Sydney, Australia
[9] Nepean Hosp, Intens Care Unit, Sydney, Australia
[10] Nepean Hosp, Sydney, Australia
[11] John Hunter Hosp, Intens Care Unit, New Lambton, Australia
[12] St George Hosp, Intens Care Unit, Sydney, Australia
[13] Johns Hopkins Univ Hosp, Crit Care Phys Med & Rehabil Program, Baltimore, MD USA
[14] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[15] Johns Hopkins Univ, Sch Nursing, Baltimore, MD USA