POS0481 “Real World” Incidence and Characteristics of Immune Effector Cell–Associated Hemophagocytic Lymphohisticytosis: A GoCart Coalition Study on Behalf of the European Bone Marrow TraNsplantation (EBMT) Autoimmune Disease Working Party (ADWP), Cellular Therapy Working Party (CTIWP) and transplant Complication Working Party(TCWP) | Publicación