2Gallo O, Masini E, Morbidelli L, et al. Role of nitric oxidein angiogenesis and tumor progression in head and neck cancer. J Natl Cancer inst, 1998,90: 587~596.
3Ziche M, Morbidelli E, Masini S, et al. Nitric oxide mediates angiogenesis in vivo and endothelia cell growth and migration in vitro prometed by substance P. J Clin Invest, 1994,94:2036~2044,.
4Vermeulen PB, Gasparini G, Fox SB, et al. Quantification of angiogenesis in solid human tumors: an international consensus on the methodology and criteria of evaluation. Eur J Cancer, 1996,32A:2474~2484.
5Fontanini G, Vignati S, Bigini D, et al. Neoangiogenesis: a putative marker of malignancy in non-small cell lung cancer(NSCLC)development. Int J Cancer, 1996,67(5): 615~619.
6Garcia Cardena G, Folkman J. Is there a role for nitric oxide in tumor angiogenesis? J Natl Cancer Inst, 1998,90:560~561.