Correction to: Nature Communications https://doi.org/10.1038/s41467-018-03759-y, published online 24 April 2018

The original version of this Article contained errors in Figs. 5 and 6. In Fig. 5b, the second panel on the bottom row was stretched out of proportion. The correct version of Fig. 5b appears below as Fig. 1:

Fig. 1
figure 1

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which replaces the previous incorrect version that appears as Fig. 2 below.

Fig. 2
figure 2

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In Fig. 6d, the first panel was also stretched out of proportion. In Fig. 6f, the fifth panel inadvertently repeated the fourth. The correct version of Fig. 6c–f which appears below as Fig. 3:

Fig. 3
figure 3

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which replaces the previous incorrect version that appears as Fig. 4 below.

This has been corrected in both the PDF and HTML versions of the Article.

Fig. 4
figure 4

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