Correction to: Nature Biomedical Engineering https://doi.org/10.1038/s41551-017-0181-y, published 10 January 2018.

In the version of this Article originally published, panels b and c of Fig. 5 should have been swapped; that is, Fig. 5c should have been Fig. 5b, and vice versa. This has now been rectified and the corrected figure is shown below.

Fig. 5
figure 1

b,c | Corrected.

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