Methods Twenty one patients who were pretreated with either chemotherapy or combined radiation chemotherapy underwent APBSCT and the number of CFU F was assayed by Dexter method.

• 方法 采用Dexter型方法 ,检测 2 1例外周血干细胞移植患者经单化或化放结合两种预处理方案 ,观察前后不同时间骨髓基质细胞集落形成能力。