“…Similar mixed results have been observed for mutation induction in E. coli [6,7]. Results of tests in cultured mammalian cells show AITC can induce structural and numerical chromosome changes in several cell lines [4,6,[8][9][10][11][12][13][14][15]. In contrast, AITC has given uniformly negative responses in in vivo tests [16][17][18][19][20][21].…”