In the article by Rao et al, “Tyrosine Hydroxylase, the Rate-Limiting Enzyme in Catecholamine Biosynthesis: Discovery of Common Human Genetic Variants Governing Transcription, Autonomic Activity, and Blood Pressure In Vivo,” which appeared in the August 28, 2007, issue of the journal (Circulation. 2007;116:993–1006), an error occurred in Figure 6A. The dendrogram in the figure was duplicated and the 2 duplicated dendrograms were horizontally compressed to fill the space that should have been occupied by the single dendrogram.
The error has been corrected in the current online version of the article.
The authors regret this error.