1. Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
2. The Netherlands, Current affiliation: Department of Dermatology/Allergology, University Hospital Utrecht, Utrecht
3. Central Laboratory of the Netherlands Red Cross Blood Transfusion Service, Amsterdam
4. The Netherlands Department of Clinical Chemistry University Hospital, Malmö, Sweden
5. Medical Microbiology, Lund University, Malmö University Hospital, Malmö, Sweden