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. 2006 Dec;114(12):A700–A705. doi: 10.1289/ehp.114-a700

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graphic file with name ehp0114-a00700f5.jpg — Susceptibility markers include intrinsic genetic or other characteristics, such as single-nucleotide polymorphisms, or preexisting diseases that result in an increase in internal dose, biologically effective dose, or target tissue response.