In the article, “Thyroid Disease and the Heart,” by Klein and Danzi, which appeared in the October 9, 2007, issue of the journal (Circulation. 2007;116:1725–1735), the following correction should be made:
In the last paragraph, “vitamin D” should be changed to “vitamin K.”
This error has been corrected in the current online version of the article. The authors regret this error.