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. 2012 Feb 7;120(5):702–707. doi: 10.1289/ehp.1104474

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Scatterplots of prenatal (umbilical cord) lead concentrations versus plasma Aβ subspecies concentrations (n = 55 plasma samples). Aβ₄₂ (A) and Aβ₄₀ (B) at 28 years of age and Aβ₄₂:Aβ₄₀ ratio at 29 years of age (C).