1. Department of Haematology and Central Haematology Laboratory, Inselspital Bern University Hospital and University of Bern Bern Switzerland
2. Division of Haematology and Central Hematology Laboratory CHUV Lausanne University Hospital and University of Lausanne Lausanne Switzerland
3. Faculty of Biology and Medicine University of Lausanne Lausanne Switzerland
4. University Institute of Clinical Chemistry University of Bern Bern Switzerland