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. 2011 Oct 25;120(2):223–228. doi: 10.1289/ehp.1103699

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Prevalence of renal dysfunction in relation to 1998 UCd level in individuals < 50 years of age (A,C,E) and ≥ 50 years of age (B,D,F) shown by increased excretion of NAG (A, B), β₂-microglobulin (β₂M; C,D), and albumin (E,F) above the cut points.