The publisher regrets that an error occurred during the preparation of Figure 1A for final publication. The position of some of the point estimates and the size of the bars representing the confidence intervals were incorrect. An updated version of the article with the correct version of Figure 1A was published online in December 2017. For reference, both the corrected figure that is currently online and the incorrect version of Figure 1A that was published online and in print are shown below.
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