1. Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz, Austria.
2. Department of Anesthesiology and Intensive Care Medicine, Karl Landsteiner Privatuniversität (KPU), Universitätsklinikum St. Pölten, St Pölten, Austria.
3. Intensive Care Unit, Department of Internal Medicine, Medical University of Graz, Graz, Austria.
4. Joanneum Research GmbH, HEALTH, Institute for Biomedicine and Health Sciences, Graz, Austria.