1. Laboratory Haematology University Hospital Centre of Dijon Bourgogne Dijon France
2. Division of Internal Medicine, Competence Centre for Autoimmune Cytopenia University Hospital Centre of Dijon Dijon France
3. Division of Paediatrics University Hospital Centre of Dijon Dijon France
4. Resources and Competence Centre for Constitutional Bleeding Disorders University Hospital Centre of Dijon Dijon France
5. Hyphen Biomed Neuville‐sur‐Oise France
6. INSERM UMR1098 University of Bourgogne Franche‐Comté, EFS Bourgogne Franche‐Comté Besançon France
7. Faculty of medicine University of Lorraine Nancy France