Correction: Estrogen Metabolism and Mammographic Density in Postmenopausal Women: A Cross-Sectional Study

In this article (Cancer Epidemiol Biomarkers Prev 2012;21:1582–91), which was published in the September 2012 issue of Cancer Epidemiology, Biomarkers & Prevention (1), the authors regret that the affiliation for Maddalena Barba was listed incorrectly. The correct affiliation is:

Maddalena Barba

Regina Elena National Cancer Institute, Rome, Italy.