[1] Univ Hosp Ioannina, Intens Care Unit, Stavros Niarchos Ave, Ioannina 45500, Greece
[2] Univ Queensland, Fac Med, UQ Ctr Clin Res, Burns Trauma & Crit Care Res Ctr, Herston Campus, Brisbane, Qld 4029, Australia
[3] Attikon Univ Hosp, Crit Care Dept 2, Rimini St, Athens 12463, Greece
[4] Univ Ioannina, Sch Med, Lab Immunol & Microbiol, Stavros Niarchos Ave, Ioannina 45500, Greece