The Role of Anti-Thymocyte Globulin (ATG) in Patients with AML Transplanted in CR1 from Sibling and Unrelated Donors with or without Measurable Residual Disease (MRD) at the Time of Allogeneic Stem Cell Transplantation: A Study on Behalf of the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation | Publicación