Dose intensity of selected conditioning regimens used for allogeneic hematopoietic cell transplantation

BU: busulfan; CY: cyclophosphamide; TBI: total body irradiation; Flu: fludarabine (various dosing schedules); AraC: cytosine arabinoside; ATG: antithymocyte globulin (or thymoglobulin); 131I: anti-CD45 antibody conjugated to 131I; GVT: graft versus tumor.
* "High-dose" TBI (800 to 1320 cGy).
• "Low-dose" TBI (200 to 400 cGy).