1. Department of Histology and Cytogenetics Institut Pasteur de Tunis Tunis Tunisia
2. Laboratory of Biomedical Genomics and Oncogenetics Institut Pasteur de Tunis Tunis El Manar University Tunis Tunisia
3. Department of Tumour Biology Institut Curie Paris France
4. Haematology Department Hedi Chaker Hospital University of Sfax Sfax Tunisia
5. Department of Haematology and Transplantation National Bone Marrow Transplantation Centre Tunis Tunisia
6. Department of Peadiatric Immuno‐Haematology National Bone Marrow Transplantation Tunis Tunisia
7. Haematology Department Aziza Othmana Hospital Tunis Tunisia
8. Institut Curie INSERM U830 Paris France
9. Sorbonne Paris Cité, Université Paris Descartes Paris France
10. Hôpital Saint‐Louis Paris France
11. Department of Pediatrics CHU Hedi Chaker Sfax Tunisia
12. Laboratory of Transmission, Immunology and Infection Control Institut Pasteur de Tunis Tunis Tunisia