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. 2008 Sep 4;105(37):13941–13946. doi: 10.1073/pnas.0803533105

Fig. 3.

Fig. 3.

Cross-correlograms: WAMX + XERO PdB-scores versus atmospheric δ14C (32) and WAST + HODE PdB-scores versus anthropogenic indicators. Vertical axes show correlation coefficients. Significance level P = 0.05.