Vol. 183 No. 4, November 17, 2008. Page .
Due to a production error, the two-panel image in the original story was reversed. The correct image appears below.
The html and pdf versions of this article have been corrected. The error remains only in the print version.
Vitamin D spurs cancer cells to take on the spread-out epithelial phenotype (left), but they are more rounded if RhoA is disrupted (right).
