Comparison between Upfront Transplantation and different Pretransplant Cytoreductive Treatment Approaches in Patients with High-Risk Myelodysplastic Syndrome and Secondary Acute Myelogenous Leukemia - Schroeder, T; Wegener, N; Lauseker, M; Rautenberg, C; Nachtkamp, K (Biol Blood Marrow Transplant, 2019)