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Kodros , (corresponding author), Christine LOrange, Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, USA Katelyn ODell, Jeffrey R

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Epigenetic signatures of disease outcomes closely related to cigarette smoking have been reviewed recently in Sundar et al

ROBYN BECK/AFP/Getty Images Journalist Laura Ling speaks in front of Clinton, former Vice President Al Gore and Euna Lee in August 2009, after she and Lee were released by North Korean authorities