1. Institute for Clinical Chemistry, University Hospital Mannheim, Mannheim, Germany.
2. Clinic of Anesthesiology and Intensive Care Medicine, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Mannheim, Germany.
3. Institute of Transfusion Medicine and Immunology, Red Cross Blood Service of Baden-Württemberg-Hessen, Mannheim, Germany.
4. Department for Statistical Analysis, Medical Faculty Mannheim of the University of Heidelberg, University Hospital Mannheim, Mannheim, Germany.
5. Department of Anaesthesiology, Emergency and Intensive Care Medicine, University of Göttingen, Göttingen, Germany.