Objective To study the effects of extraneous vascular endothelial growth factor ( VEGF) on mammary carcinogenesis in resistant Copenhagen ( COP) rats induced by N-nitroso-N-methylurea ( NMU). 目的:探讨外源性血管内皮细胞生长因子(VEGF)对致癌剂N-nitroso-N-methylurea(NMU)诱导Copenhagen(COP)大鼠乳腺癌发生的影响。
Nonrandom chromosome changes in cell lines of mouse T-cell lymphomas induced by n nitroso n methylurea 甲基亚硝基脲诱发鼠类T细胞淋巴瘤细胞系染色体的非随机变化
Synthesis of N-( 4-Chloro-3-tolyl)-N ′-methylurea N-(4-氯-3-甲基苯基)-N′-甲基脲的合成