Erythrocytes from donor bone marrow grafts were removed by sediment mothed mediated by hydroxyethyl starch before transplantation in two patients with major ABO blood group incompatility.

• ABO血型主要不合移植前用羟乙基淀粉自然沉淀去除供者骨髓血中红细胞；2例患者的有核细胞回收率分别为44.；89%25及65