Correction to: Nature Medicine https://doi.org/10.1038/nm1425, published online 18 June 2006.

In the original version of the article, due to a figure preparation error in image selection, the images shown in the 0 h conditions row in Fig. 4c were incorrect. The corrected figure can be seen as Fig. 1 below. This amendment serves to correct the figure in the article.

Fig. 1
Fig. 1
Full size image

Corrected Fig. 4c.