In this July 20, 2006 file photo, a woman smokes a cigarette during a break from work in downtown Chicago. New research published in the New England Journal of Medicine's issue coming out Thursday, Jan. 24, 2013, finds that women who smoke today have a much greater risk of dying from lung cancer than they did decades ago compared to those who never smoked. That is partly because they are starting younger and smoking more than women used to. (AP Photo/Julio Cortez, File)
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