[1] Uppsala Univ, Sect Anaesthesiol & Crit Care, Dept Surg Sci, Hedenstierna Lab, S-75185 Uppsala, Sweden
[2] Univ Sao Paulo, Hosp Clin, Pulm Div Heart Inst InCor, Sao Paulo, Brazil
[3] Uppsala Univ Hosp, Dept Radiol, Uppsala, Sweden
[4] Uppsala Univ, Dept Med Sci, Clin Physiol, Hedenstierna Lab, Uppsala, Sweden