I M Tleyjeh, et al. The association between the timing of valve surgery and 6-month mortality in left-sided infective endocarditis. Heart 2008;94:892–6. The published affiliation for the fourth author of this paper, HMK Ghomrawi, was incorrect. The correct affiliation is: Division of Health Policy, Department of Public Health, Weill Medical College, Cornell University, New York, USA.