1. Radboud University Nijmegen, Nijmegen, Netherlands
2. Lady Davis Institute of the Jewish General Hospital, Montreal, Canada
3. NVLE Dutch patient organization for systemic autoimmune diseases, Utrecht, The Netherlands
4. Sint Maartenskliniek, Nijmegen, The Netherlands
5. Leiden University Medical Center, Leiden, The Netherlands
6. Haga Teaching Hospital, The Hague, The Netherlands
7. Department of Medicine, McGill University, Montreal, Quebec, Canada
8. Faculty of Behavioural and Movement Sciences, Vrije Universiteit, Amsterdam, The Netherlands
9. Scleroderma Society of Ontario, Hamilton, Ontario, Canada
10. Scleroderma Canada, Ottawa, Ontario, Canada
11. University of Texas McGovern School of Medicine, Houston, Texas, United States of America
12. San Diego State University, San Diego, CA, United States of America
13. St. Joseph’s Health Care, London, Ontario, Canada
14. Université de Paris, Paris, France
15. Centre d’Épidémiologie Clinique, Assistance Publique–Hôpitaux de Paris (AP-HP), Hôpital Hôtel Dieu, Paris, France
16. Centre of Research Epidemiology and Statistics (CRESS), Inserm, INRA, Université de Paris, Paris, France
17. Assistance Publique-Hôpitaux de Paris, Paris, France
18. Department of Psychiatry, McGill University, Montreal, Quebec, Canada
19. Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
20. Department of Psychology, McGill University, Montreal, Quebec, Canada
21. Service de Médecine Interne, Centre de Référence Maladies Autoimmunes Systémiques Rares d’Ile de France, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
22. APHP-CUP, Hôpital Cochin, Paris, France