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. 2006 Mar 27;114(8):1158–1161. doi: 10.1289/ehp.8865

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Correlation analyses of urinary MCIOP, MHINP, and MOINP. R represents Pearson correlation coefficient. Levels below the LOD were excluded in the analysis: (A) R = 0.83, p < 0.0001; (B) R = 0.76, p < 0.0001; (C) R = 0.73, p < 0.0001.