Objective: To explore the feasibility of maternal HLA-haploidentical HSCT for malignant hematological diseases, and to determine the significance of fetal microchimerism (FMc) in it.

• 目的:探讨母供体HLA半相合HSCT治疗恶性血液病的可行性,研究供体的胎儿细胞微量嵌合体(FMc)状态与移植疗效的相关性;