1. Coagulation Laboratory Department of Laboratory Medicine Ghent University Hospital Ghent Belgium
2. Department of Diagnostic Sciences Ghent University Ghent Belgium
3. Synapse Research Institute Maastricht University Medical Center Maastricht The Netherlands
4. Barbara Volcker Center for Women and Rheumatic Diseases Hospital for Special SurgeryWeill Cornell Medicine New York NY USA
5. Department of Haematology Sydney Centres for Thrombosis and Haemostasis Institute of Clinical Pathology and Medical Research (ICPMR) NSW Health PathologyWestmead Hospital Westmead NSW Australia
6. Haemostasis Research Unit Research Haematology Department University College London London UK
7. Laboratorio Central del Hospital Italiano de Buenos Aires Departamento de Bioquímica Aplicada Instituto Universitario del Hospital Italiano Buenos Aires Argentina
8. Division of Hematology Department of Medicine Duke University Medical Center Durham NC USA
9. Department of Pathology Duke University Medical Center Durham NC USA
10. Thrombosis Research Laboratory Department of Cardio‐Thoracic‐Vascular Sciences and Public Health University of Padova Padova Italy
11. Department of Pathology & Laboratory Medicine Weill Cornell Medical College Cornell University New York NY USA
12. Angelo Bianchi Bonomi Hemophilia and Thrombosis Center IRCCS Cà Granda Maggiore Policlinico Hospital Foundation Milano Italy
13. Fondazione Luigi Villa Milano Italy
14. Vascular Medicine Division and Competence Center for Rare Vascular and Systemic Autoimmune Diseases Nancy University Hospital Nancy France
15. INSERM UMR‐S 1116 University of Lorraine Nancy France
16. Haemostasis Research Unit Department of Haematology University College London London UK
17. Department of Haematology University College London Hospitals NHS Foundation Trust London UK