2Kondo S, Asano M, Matsuo K, et al. Vascular endothelial growth factor/vascular permeability factor is detectable in the sera of tumor-bearing mice and cancer patients[J]. Biophys Acta,1994,1221 :211-214.
3Ronnie Tung-Ping P, Sheung-Tat F, Jhon W. Clinical implications of circulating angiogenic factors in cancer patients[J]. J Clin Oncol,2001,19:1207-1225.
4Landriscina M, Cassano A,Ratto C,et al. Quantitative analysis of basic fibroblast growth factor and vascular endothelial growth factor in human colorectal cancer[J]. Br J Cancer, 1998,78: 765-770.
5Jacobsen J, Rasmuson T, Grankvist K, et al. Vascular endothelial growth factor as prognostic factor in renal cell carcinoma[J]. J Urol, 2000,163:343-347.
6Poon RTP, Ng Iol. Lau C, et al. Serum vascular endothelial growth factor predicts venous invasion in hepatocellular carcinoma. A prospective study[J]. Ann Surg, 2001,233:227-235.
7Kumar H, Heer K, Lee PW, et al. Preoperative serum vascular endothelial growth factor can predict stage in colorectal cancer[J].Clin Cancer Res,1998,4:1279-1285.
8Yamoto Y, Toi M, Kondo S,et al. Concentrations of vascular endothelial growth factor in the sera of normal controls and cancer patients[J]. Clin Cancer Res, 1996,2:821-826.
9Dirix LY, Vermeulen PB, Pawinski A, et al. Elevated levels of the angiogenic cytokines basic fibroblast growth factor and vascular endothelial growth factor in sera of cancer patients[J]. Br J Cancer, 1997,76: 238-243.
10Hyodo I,Doi t,Endo H, et al. Clinical Significance of plasma vascular endothelial growth factor in gastrointestinal cancer[J]. Eur J Cancer, 1998,34:2041-2045.