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Extracted ion chromatograms measuring the relative amount of benznidazole in the presence of NADH plus (A) no enzyme, (B) 0.13 mg ml−1 recombinant TcAKR, (C) 40 mg ml−1 of a wild-type T. cruzi lysate and (D) 40 mg ml−1 of a lysate-overexpressing NTR.
