1 University Hospital of Ioannina, Intensive Care Unit, Stavros Niarchos Avenue, 45500 Ioannina, Greece.
2 Burns, Trauma and Critical Care Research Centre, UQ Centre for Clinical Research (UQCCR), Faculty of Medicine, The University of Queensland, Brisbane, Herston Campus, Brisbane QLD 4029, Australia.
3 2nd Critical Care Department, Attikon University Hospital, Rimini Street, 12463 Athens, Greece.
4 Laboratory of Immunology and Microbiology, School of Medicine, University of Ioannina, Stavros Niarchos Avenue, 45500 Ioannina, Greece.