1. Intensive Care Department, CHU UCL Godinne Namur, Louvain Medical School, Namur, Belgium
2. Intensive Care Unit, IRIS Sud Hospitals, Brussels, Belgium
3. Department of Intensive Care Unit, Universiteit Ziekenhuis Brussel, Brussels, Belgium
4. Toxicology Laboratory, Department of Biology, Universiteit Ziekenhuis Brussel, Brussels, Belgium
5. Department of Intensive Care, Cliniques Universitaires Saint Luc, Brussels, Belgium
6. Department of Intensive Care, Brugmann University Hospital, Brussels, Belgium