Previous allogeneic transplant Previous allogeneic stem cell transplant Receipt of previous allogeneic stem cell transplant; receipt of previous autologous transplant for AML or non-AML condition is allowed Previous allogeneic stem cell transplant Previous allogeneic transplant Patients who have had a previous autologous or allogeneic stem cell transplant in the previous months Allogeneic transplant for AML within the previous months (no time limit for autologous transplant) Previous allogeneic (allo)-transplant of any kind Previous allogeneic stem cell transplant. Allogeneic transplant for AML within previous months (no time limit for autologous transplant) Previous allogeneic stem cell transplant Previous allogeneic stem cell transplant Prior allogeneic stem cell transplant in previous months Patients with previous allogeneic stem cell transplant. Patient must not have had a previous allogeneic or syngeneic transplant; prior autologous transplant is allowed Underwent a previous related or unrelated allogeneic transplant