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In order to determine the optimum dose ofN-methyl-N--amyl-nitrosamine (MANA) and theduration of its administration in induction of eso-phageal cancer, 334 normal adult rats(Wistar strain)
In order to determine the optimum dose of N-methyl-N-amyl-nitrosamine (MANA) and theduration of its administration in induction of eso-phageal cancer, 334 normal adult rats (Wistar strain)