1. Division of Rheumatology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
2. Rheumatology and Clinical Immunology, Spedali Civili of Brescia, Brescia, Italy
3. Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland
4. Section of Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
5. Rheumatology Department, Rambam Health Care Campus, Rappaport Faculty of Medicine, Technion, Haifa, Israel
6. Department of Internal Medicine, Hôpital Claude Huriez, Lille, France
7. ERN ReCONNET, Division of Rheumatology, University Hospitals Leuven, Leuven, Belgium
8. Department of Rheumatology, Emergency County Teaching Hospital, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania
9. Clinical Rheumatology Unit, ASST Pini-CTO, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
10. Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
11. Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
12. Laboratory of Microcirculation and Inflammation, VA Nasonova Institute of Rheumatology, Moscow, Russian Federation
13. Scleroderma Unit, Referral Center for Systemic Autoimmune Diseases, La Fondazione IRCCS Ca’ Granda Ospedale Maggiore di Milano Policlinico, Milano, Italy
14. Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow, Russian Federation
15. Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Lublin, Poland
16. Rheumatology, Policlinico San Matteo, Pavia, Italy
17. Department of Rheumatology, Universitätsspital Basel, Basel, Switzerland
18. Rheumatology Department, Bordeaux University Hospital, Bordeaux, France
19. Rheumatology Unit – DETO, School of Medicine, University of Bari, Bari, Italy
20. Department of Rheumatology, Ghent University Hospital and Department of Internal Medicine, Ghent University, Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium
21. Department of Precision of Medicine, University of Campania – L. Vanvitelli, Naples, Italy
22. Division of Rheumatology and Systemic Inflammatory Diseases, University Hospital Hamburg-Eppendorf (UKE), Hamburg, Germany
23. Rheumatology, Cochin Hospital, APHP, Paris Cité University, Paris, France