Correction to: Nature Communications https://doi.org/10.1038/s41467-019-10107-1, published online 21 May 2019.

The original version of this Article contained errors in Figs 2 and 3. In Fig. 2b, the scale bar label ‘500 µm’ was originally incorrectly given as ‘200 µm’. In Fig. 2d, the scale bar label ‘500 µm’ was originally incorrectly given as ‘100 µm’. In Fig. 3c, the scale bar label ‘200 µm’ was originally incorrectly given as ‘100 µm’. This has been corrected in the PDF and HTML versions of the Article.