Correction [Corrections]

In the article by Liang et al, "Drug Screening Using a Library of Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes Reveals Disease-Specific Patterns of Cardiotoxicity," which published in the April 23, 2013 issue of the journal , an error occurred.

http://circ.ahajournals.org/content/128/4/e58.short?rss=1