Cigarette butts in an ashtray in Los Angeles, California, May 31, 2012.
Credit: Reuters/Jonathan Alcorn
By Kathryn Doyle
NEW YORK | Wed Feb 27, 2013 4:02pm EST
NEW YORK (Reuters Health) – A calculation based on results from a large lung cancer screening trial projects that 12,000 deaths a year among the highest-risk smokers and ex-smokers in the U.S. could be avoided with a national screening program.