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. 2017 Dec 4;12(12):e0187830. doi: 10.1371/journal.pone.0187830

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© 2017 Tang et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 2 — Panel (a) shows cross-correlation coefficients between dengue and MEI. Panel (b) shows cross-correlation coefficients between GBS and MEI. Panel (c) shows the cross-correlation coefficients between GBS and dengue. In all three panels, we consider time lags from 0 to 11 months. In this plot, the lag (namely l) of, for example, X vs. Y represents that Y lags l month(s) behind X (i.e., X_t+l is corresponding to Y_t). The vertical black bars are 95% CI. The squares in the middle are the mean estimate of cross-correlation coefficients. The blue dotted line is p-value of each cross-correlation coefficient. The horizontal dashed light blue lines on all panels indicate the 0.05 significance level.