1. Van Creveldkliniek; University Medical Center; Utrecht the Netherlands
2. Department of Clinical Haematology; Academic Medical Center; Amsterdam the Netherlands
3. Department of Intensive Care Medicine; Medisch Centrum Haaglanden; The Hague the Netherlands
4. Department of Intensive Care Medicine; Academic Medical Center; Amsterdam the Netherlands
5. Department of Medical Microbiology; Academic Medical Center; Amsterdam the Netherlands
6. Department of Critical Care; University Medical Center Groningen; University of Groningen; Groningen the Netherlands