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Levels of pyridylhydroxybutyl DNA phosphate adducts in (A) liver DNA, (B) lung DNA, and levels of each isomer of (C) Gp(PHB)T, (D) Cp(PHB)C and (E) Tp(PHB)T in liver DNA of rats (n = 5) treated with 5 ppm of NNK in drinking water for 10, 30, 50 or 70 weeks. Values are presented as means ± SD.
