1. Haemostasis Research Unit Department of Haematology University College London London UK
2. University of Sao Paulo Sao Paulo Brazil
3. Antiphospholipid Standardization Laboratory University of Texas Medical Branch Galveston TX USA
4. Barbara Volcker Center for Women and Rheumatic Diseases Hospital for Special Surgery Weill Cornell Medicine New York NY USA
5. Center of Research of Immunopathology and Rare Diseases University of Turin Turin Italy
6. Department of Infectious Diseases, Immunology and Sexual Health St George Hospital Sydney NSW Australia
7. University Hospital Padova Padova Italy
8. National and Kapodistrian University of Athens Athens Greece
9. Internal Medicine Hospital Universitario Cruces Barakaldo País Vasco Spain
10. University of Milan Milan Italy
11. School of Medicine New York University New York NY USA
12. Maimonides Institute for Biomedical Research of Cordoba Cordoba Spain
13. Rheumatology and Immunology Department Peking University First Hospital Beijing China
14. University of Utah and Intermountain Healthcare Salt Lake City UT USA
15. Rio de Janeiro State University Rio de Janeiro Brazil
16. CHU de Quebec – Université Laval Quebec QC Canada
17. Rheumatology and Clinical Immunology Spedali Civili Brescia Italy
18. Department of Clinical and Experimental Sciences University of Brescia Brescia Italy
19. Department of Medicine Johns Hopkins University School of Medicine Baltimore MD USA
20. Department of Autoimmune Diseases Hospital Clínic Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Catalonia Spain
21. Hospital Universitario 12 de Octubre Madrid Spain
22. Division of Rheumatology University of Michigan Ann Arbor MI USA
23. Hokkaido University Hospital Sapporo Japan
24. Academic Department of Vascular Surgery School of Cardiovascular Medicine & Sciences King's College London London UK
25. Department of Haematology University College London Hospitals NHS Foundation Trust London UK