In the study titled "Mild Cognitive Impairment: Clinical Characterization and Outcome by Petersen et al published in the March issue of the ARCHIVES (1999;56:303-308), the bottom panel of Figure 3 was incorrect. The correct version of the bottom panel of the figure is reprinted here.
Error of Figure. Arch Neurol. 1999;56(6):760. doi:10.1001/archneur.56.6.760