1Bellamy WT, Richter L, Frufiger Y, et al. Expression of vascular en- dothelial growth factor and its receptors in hematopoietie malignancies. Cancer Res. 1999, 59: 728.
2Gerber HP, Malik AK, Solar GP ,et al. VEGF regulates haematopoieric stem cell survival by an interval, autocrine loop mechanism. Nature. 2002,417:945.
3Bautz F, Rafil S, Kanz L, et al. Expression and secretion of VEGF - A by eytokine - stimulated hematopoietic progenitor cells : possible role in the hematopoietic microenvironment. Exp Hematol. 2000,28:700.
