1. Universidade de São Paulo , São Paulo, São Paulo, Brazil
2. Universidade Federal de Juiz de Fora , Juiz de Fora, Minas Gerais, Brazil
3. Barbara Volcker Center for Women and Rheumatic Disease, Hospital for Special Surgery, Weill Cornell Medicine , New York, NY, USA
4. National and Kapodistrian University of Athens , Athens, Greece
5. University Hospital Padova , Padova, Italy
6. Center of Research of Immunopathology and Rare Diseases, University of Turin , Turin, Italy
7. Hospital Universitario Cruces , País Vasco, Barakaldo, Spain
8. Hospital for Joint Diseases, New York University , New York, NY, USA
9. Rheumatology Service, IMIBIC/Reina Sofia Hospital, University of Cordoba , Cordoba, Spain
10. CHU de Québec-Université Laval , Québec, Québec, Canada
11. Université de Lorraine, INSERM, DCAC , Nancy, France
12. Vascular Medicine Division and Regional Competence Center for Rare Vascular and Systemic Autoimmune Diseases, CHRU-Nancy , Nancy, France
13. Clinical Immunology & Rheumatology Unit, IRCCS Istituto Auxologico Italiano , Milan, Italy
14. Universidade do Estado do Rio de Janeiro , Rio de Janeiro, Brazil
15. Rheumatology and Immunology Department, Peking University First Hospital , Beijing, China
16. Hokkaido University Hospital , Sapporo, Japan
17. Haemostasis Research Unit, Department of Haematology, University College London , London, UK
18. University of Utah and Intermountain Healthcare , Salt Lake City, UT, USA
19. Rheumatology and Immunology Unit, ASST Spedali Civili of Brescia , Brescia, Italy
20. Hospital Universitario, 12 de Octubre , Madrid, Spain
21. Johns Hopkins University School of Medicine , Baltimore, MD, USA
22. Department of Autoimmune Diseases, Hospital Clínic , Barcelona, Catalonia, Spain
23. Division of Rheumatology, University of Michigan , Ann Arbor, MI, USA
24. Istanbul University School of Medicine , İstanbul, Turkey
25. Antiphospholipid Standardization Laboratory, University of Texas Medical Branch , Galveston, TX, USA
26. Academic Department of Vascular Surgery, King’s College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences , London, UK
27. University of North Carolina , Chapel Hill, NC, USA