[1] Canberra Hosp, Physiotherapy Dept, Bldg 15,Yamba Dr, Canberra, ACT 2605, Australia
[2] Canberra Hosp, Intens Care Unit, Canberra, ACT, Australia
[3] Australian Natl Univ, Sch Med, Canberra, ACT, Australia
[4] Univ Canberra, Discipline Physiotherapy, Canberra, ACT, Australia
[5] Univ Queensland, Sch Med, Brisbane, Qld, Australia