1. Division of Hematology / Oncology; CHU Sainte-Justine; Montréal QC Canada
2. Immunology / Histocompatibility laboratory; CHU de Quebec and Department of Microbiology; Infectious Diseases and Immunology; Laval University; Quebec QC Canada
3. Department of Hematology and Oncology; Hôpital Universitaire des Enfants Reine Fabiola; Université Libre de Bruxelles; Belgium