1. Service and Central Laboratory of Hematology, Lausanne University Hospital, Switzerland
2. Department of Hematology and Central Haematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Switzerland
3. Centre for Perioperative Thrombosis and Hemostasis, Zurich, Switzerland
4. Division of Angiology and Hemostasis, Geneva University Hospital, Geneva, Switzerland
5. Cantonal Hospital of St Gallen, Switzerland
6. Division of Medical Oncology and Hematology, University Hospital Zurich, Switzerland
7. Division of Hematology, Basel University Hospital, Basel, Switzerland
8. Division of Hematology and Central Hematology Laboratory, Cantonal Hospital of Lucerne and University of Bern, Switzerland