1. Allogeneic Stem Cell Transplantation Unit, Department of Hematology,
2. Department of Neurology, Salengro Hospital,
3. Unité Mixte de Recherche (UMR)–INSERM 1171, Fédératif Hospitalo-Universitaire (FHU) Imminent, University of Lille,
4. Laboratory of Immunology, Biology-Pathology Center, and
5. LIRIC-INSERM U995, FHU Imminent, University of Lille, Centre Hospitalier Universitaire (CHU) Lille, Lille, France