1. Department of Immuno Haematology Hopital Saint‐Louis, Assistance Publique Hôpitaux de Paris Paris France
2. University of Paris Paris France
3. Laboratory of Haematology Hopital Pitie‐Salpetriere, Assistance Publique Hôpitaux de Paris Paris France
4. Department of Clinical Immunology Hopital Saint‐Louis, Assistance Publique Hôpitaux de Paris Paris France
5. Department of Haemato‐Oncology Hopital Saint‐Louis, Assistance Publique Hôpitaux de Paris Paris France
6. Laboratory of Haematology Hopital Saint‐Louis, Assistance Publique Hôpitaux de Paris Paris France