Andrew C. Harris, Carrie L. Kitko, Daniel R. Couriel, Thomas M. Braun, Sung W. Choi, John Magenau, Shin Mineishi, Attaphol Pawarode, Gregory Yanik, John E. Levine. Extramedullary relapse of acute myeloid leukemia following allogeneic hematopoietic stem cell transplantation: incidence, risk factors and outcomes. Haematologica 2013;98(2):179-184; https://doi.org/10.3324/haematol.2012.073189.