In the article by Eduard Vieta, M.D., Ph.D., et al. ("Efficacy of Adjunctive Aripiprazole to Either Valproate or Lithium in Bipolar Mania Patients Partially Nonresponsive to Valproate/Lithium Monotherapy: A Placebo-Controlled Study," published online April 1, 2008; doi:10.1176/appi.ajp.2008.07101560), the mean changes from baseline in Figure 2 did not correspond with the data provided by the authors, which showed a greater degree of change over 6 weeks. Also, in Figure 3 the endpoint of the Young Mania Rating Scale was incorrect. The PDF version now online indicates that it differs from what was first posted in that Figure 2 has been modified to accurately reflect the greater degree of change seen in the study and the endpoint of the Young Mania Rating Scale in Figure 3 has been corrected. When the article appears in print, the online version of the article will be updated to reflect the issue page numbers and Figure 2 and Figure 3 will appear as they were intended.