The article published on page 995-1003, Vol. 4, 2013 issue of International Journal of Preventive Medicine[1] was retracted[2]. However, the reason for the retraction was not made clear in the previously published notice. The correct reason for retraction is as follows:The authors determined that the conclusions of the manuscript required further investigation in order to be accurately drawn from the results. Consequently, the authors requested that this article be retracted.Roya KelishadiEditor-in-Chief