[1] Univ Sao Paulo, Hosp Clin HCFMUSP, Fac Med, Pulm Div,Lab Pneumol,Heart Inst InCor, 2 Andar,Sala 2144,Ave Dr Arnaldo 455, BR-01246903 Sao Paulo, SP, Brazil
[2] Barcelona Inst Global Hlth, ISGlobal, Barcelona, Spain
[3] Univ Sao Paulo, Hosp Clin HCFMUSP, Fac Med, Med Intens Care Unit, Sao Paulo, Brazil
[4] Univ Toronto, Toronto Gen Res Inst, Inst Med Sci, Interdept Div Crit Care Med, Toronto, ON, Canada