1. INSERM U955, IMRB Univ Paris Est Créteil Créteil France
2. Eurocord, Hôpital Saint‐Louis APHP Institut de Recherche de Saint‐Louis (IRSL) EA3518, Université de Paris Cité Paris France
3. Monacord, Centre Scientifique de Monaco Monaco Monaco
4. Hematology and Bone Marrow Transplant Unit IRCCS San Raffaele Scientific Institute Milan Italy
5. Service of Hematology, Transfusion and Cell Therapy, and Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco‐Immuno‐Hematology (LIM‐31), Faculty of Medicine, Hospital das Clínicas São Paulo University São Paulo Brazil