GVHD prophylaxis recommendation tacrolimus (0.03 mg/kg/day i.v. by continuous infusion from day -2 and taper with an oral form until 1 year after BMT/PBSCT) methotrexate (15 mg/m2 i.v. on days 1 and 10 mg/m2 i.v. on days 3, 6, 11)