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Correlation matrix (Spearman’s r) for biological sample types and total mercury concentrations.
| Sample type | Urine | Hair |
|---|---|---|
| Hair | 0.643 (0.482–0.762) | |
| Blood | 0.703 (0.562–0.805) | 0.825 (0.733–0.888) |
Confidence intervals (95%) are provided. Correlations are significant at p < 0.0001.
