4Iscove NN, Sieber F, Winterhalter, KH. Erythroid colony formation in cultures of mouse and human bone marrow : analysis of the requirementfor erythropoietin by gel filitration and affinity chroma - tography on agarose - concan - avalin A[J]. J Cell Physicol, 1974,83(2) :309.
5Liu H, Mihara K, Kimura A, et al. Induction of apoptosis in CD34 + cells by sera from patients with aplastic anemia [J]. Hiroshima J Med Sci, 1999,48(2) :57.
