Error in Acknowledgments. In the article by Hardin and Yusufaly titled “Difficult End-of-life Treatment Decisions: Do Other Factors Trump Advance Directives?” published in the July 26 issue of the ARCHIVES (2004;164:1531-1533), information about a previous presentation of the study was omitted. A paragraph in the acknowledgments should have read: This study was presented in poster form at the annual meeting of the Society of Internal Medicine; May 5-6, 2000; Boston, Mass.