1. Department of Internal Medicine; National Referral Center for Adult'Immune Cytopenias Henri Mondor University Hospital, Assistance Publique Hôpitaux de Paris, Université Paris-Est Créteil; Créteil France
2. Department of Internal Medecine and Clinical Hematology; Claude-Huriez University Hospital, Université Lille Nord de France; Lille France
3. Department of Public Health and Statistics; Henri Mondor University Hospital, Assistance Publique Hôpitaux de Paris, Université Paris-Est Créteil; Créteil France
4. Department of Internal Medicine; Hôtel Dieu University Hospital; Nantes France
5. Department of Internal Medicine; La Timone University Hospital; Marseille France
6. Department of Internal Medicine; D'Estaing University Hospital; Clermont Ferrand France
7. Department of Clinical Immunology; Saint Louis University Hospital; Paris France
8. Department of Internal Medicine and Clinical Immunology; Bocage Central University Hospital, CR INSERM 1098; Dijon France
9. Deparment of Hematology; University Hospital; Amiens France
10. Department of Internal Medicine; Jean Verdier University Hospital; Bondy France
11. Department of Internal Medicine and Clinical Immunology Assistance Publique-Hôpitaux de Paris; Bicêtre University Hospital, Université Paris Sud; Le Kremlin-Bicêtre France
12. Department of Hematology; Dupuytren University Hospital; Limoges France
13. Department of Hematology; Necker University Hospital; Paris France