[1] Univ Toronto, Univ Hlth Network, Temerty Fac Med, Respirol & Lung Transplantat, Toronto, ON, Canada
[2] Univ Hlth Network, Respirol, Toronto, ON, Canada
[3] Univ Toronto, Univ Hlth Network, Kinesiol & Phys Educ, Anesthesia & Pain Management, Toronto, ON, Canada
[4] Univ Toronto, Univ Hlth Network, KITE Toronto Rehab, Psychol, Toronto, ON, Canada
[5] Univ Hlth Network, Biostat Res Unit, Toronto, ON, Canada
[6] Univ Hlth Network, KITE Toronto Rehab, Toronto, ON, Canada
[7] Univ Toronto, Univ Hlth Network, Temerty Fac Med, Respirol, Toronto, ON, Canada
[8] Univ Hlth Network, Krembil Neurosci Ctr, Toronto, ON, Canada
[9] Univ Toronto, Univ Hlth Network, Interdept Div Crit Care Med, KITE Toronto Rehab,Phys Therapy, Toronto, ON, Canada