1. Department of Hematology, Medical Centre Leeuwarden, Leeuwarden, The Netherlands;
2. Department of Clinical Pharmacy & Pharmacology, Medical Center Leeuwarden, Leeuwarden, The Netherlands;
3. Department of Nephrology, Medical Centre Leeuwarden, Leeuwarden, The Netherlands;
4. Department of Pathology, Pathology Friesland, Leeuwarden, The Netherlands;
5. Department of Epidemiology, MCL Academy, Leeuwarden, The Netherlands