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Greenwood SK, Armstrong MJ, Hill RB, Bradt CI, Johnson TE, Hilliard CA, Galloway SM.Greenwood SK, et al. Among authors: armstrong mj.Mutat Res. 1998 Jun 5;401(1-2):39-53. doi: 10.1016/s0027-5107(97)00272-8.Mutat Res. 1998.PMID: 9639670