Safety and Efficacy of Allogeneic Hematopoietic Stem Cell Transplant after Programmed Cell Death 1 (PD-1) / Programmed Cell Death Ligand 1 (PD-L1) Blockade for Classical Hodgkin Lymphoma: Analysis of a Large International CohortReid W. Merryman, Massimo Magagnoli, Paolo Corradini et al.|Blood|2019Cited by 8