1. Department of Anesthesiology and Intensive Care Medicine, Faculty of Medicine in Plzen, Charles University, 32300 Plzen, Czech Republic
2. Department of Anesthesiology and Intensive Care Medicine, University Hospital in Plzen, 32300 Plzeň, Czech Republic
3. Biomedical Centre, Faculty of Medicine in Plzen, Charles University, 32300 Plzen, Czech Republic
4. Fachkrankenhaus Coswig GmbH, Zentrum für Pneumologie, Allergologie, Beatmungsmedizin, Thoraxchirurgie, 01640 Coswig, Germany