[1] Unity Hlth Toronto, St Michaels Hosp, Li Ka Shing Knowledge Inst, Toronto, ON, Canada
[2] Univ Toronto, Interdepartmental Div Crit Care Med, Toronto, ON, Canada
[3] Univ Leuven, Dept Rehabil Sci, Leuven, Belgium
[4] Univ Stellenbosch, Dept Hlth & Rehabil Sci, Fac Med, Stellenbosch, South Africa