1. Department of Laboratory Medicine–Medical Immunology, Radboud University Medical Centre, Nijmegen, The Netherlands;
2. Department of Surgery, Erasmus University Medical Centre, Rotterdam, The Netherlands;
3. Department of Pathology and,
4. Department of Hematology, Radboud University Medical Centre, Nijmegen, The Netherlands; and
5. Department of Gastroenterology and Hepatology, Erasmus University Medical Centre, Rotterdam, The Netherlands