Tree diagrams for patient transplantations. (A) Tree diagram for 14 patients transplanted with T-cell–replete grafts. (B) Tree diagram for 17 patients transplanted with T-cell–depleted grafts. ** indicates dosage not reported; *** indicates targeted Bu 800-1200 µmol/min per L; ^§ indicates treosulfan dosage given in mg/kg; ^§§ indicates busulfan dosage given in mg/m². Bu, busulfan dosage given in mg/kg; Bu based, conditioning regimen contains busulfan; CD45, anti-CD45 antibody; Cy: cyclophosphamide dosage given in mg/kg; Flu, fludarabine dosage given in mg/m²; Mel, melphalan dose given in mg/m²; MFD, matched family donor; MMUD, mismatched unrelated donor; MUD, matched unrelated donor; no cond, no conditioning; pt, patient; RIC, reduced intensity conditioning; TBI, total body irradiation dosage given in Gy; 2nd Tx, second transplant; Treo, treosulfan dosage given in g/m².