1. Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP-HP, Université Paris Descartes; Paris France
2. Center for Clinical Epidemiology, Hôtel Dieu, AP-HP; Paris France
3. Department of Dermatology, Hôpital Tarnier, AP-HP; Paris France
4. Department of Internal Medicine, Hôpital Pitié-Salpétrière, AP-HP; Paris France
5. Department of Internal Medicine and Nephrology, Centre Hospitalier de Valenciennes; Valenciennes France
6. Department of Nephrology, AP-HM; Marseille France
7. Department of Internal Medicine and Vascular Disease, Centre Hospitalier Universitaire d'Angers; Angers France
8. Department of Nephrology, Centre Hospitalier Universitaire d'Angers; Angers France
9. Department of Internal Medicine, Centre Hospitalier Universitaire de Toulouse; Toulouse France
10. Department of Internal Medicine, Centre Hospitalier Universitaire de la Réunion; Réunion France
11. Department of Internal Medicine, Centre Hospitalier Universitaire de Grenoble; Grenoble France
12. Department of Nephrology, Hôpital Necker, AP-HP; Paris France
13. Department of Internal Medicine, Centre Hospitalier Universitaire de Tours; Tours France
14. Department of Internal Medicine, Centre Hospitalier Universitaire de Poitiers; Poitiers France
15. Department of Nephrology and Organ Transplantation, Centre Hospitalier Universitaire de Toulouse; Toulouse France
16. Department of Internal Medicine, Centre Hospitalier Universitaire de St. Etienne; St. Etienne France
17. Department of Internal Medicine, Centre Hospitalier Universitaire de Nice; Nice France
18. Department of Internal Medicine, Hôpitaux Privés de Metz; Metz France
19. Department of Internal Medicine, Centre Hospitalier Universitaire de Bordeaux; Bordeaux France
20. Centre Hospitalier Universitaire Lille, Département de Médecine Interne et Immunologie Clinique; Lille France
21. Department of Internal Medicine, Centre Hospitalier Universitaire de Caen; Caen France
22. Department of Internal Medicine, Centre Hospitalier Universitaire de Clermont-Ferrand; Clermont-Ferrand France
23. Department of Internal Medicine, Hôpital de Bondy, AP-HP; Paris France
24. Department of Nephrology, Centre Hospitalier de St. Lo; St. Lo France
25. Department of Internal Medicine, Centre Hospitalier Universitaire de Lyon; Lyon France
26. Department of Nephrology, Hôpital Européen Georges Pompidou, AP-HP, Université Paris Descartes; Paris France
27. Department of Nephrology, Hôpital Saint Louis, AP-HP, Université Paris Descartes; Paris France