1. Department of Endocrinology, Diabetology & Metabolism, University of Antwerp, Edegem, Belgium.
2. Department of Anesthesiology, Antwerp University Hospital, Edegem, Belgium.
3. Laboratory of Endocrinology, University of Antwerp, Wilrijk, Belgium.
4. Department of Critical Care Medicine, General Hospital Middelheim, Antwerp, Belgium.
5. Department of Critical Care Medicine, Antwerp University Hospital, University of Antwerp, Edegem, Belgium.
6. A. Menarini Diagnostics, Scientific and Technology Affairs, Florence, Italy.