Symposium of the Tobacco Science Research Conference 2011 Challenges in the development of biomarkers of smoking exposure and effect : symposium proceedings : 65th meeting, Tobacco Science Research Conference ; September 18 - 21, 2011, Lexington, Kentucky USA 2010 Tobacco research in the era of biotechnology and genomics : symposium proceedings ; 64th meeting, Annual Tobacco Science Research Conference ; October 2 - 6, 2010, Hilton Head Island, South Carolina USA 2009 Changing times: the tobacco industry and regulations : symposium proceedings ; 63rd meeting, Tobacco Science Research Conference ; September 27 - 30, 2009, Amelia Island, Florida USA 2008 Smokeless tobacco - what's new in an old product? : symposium proceedings ; 62nd meeting, Tobacco Science Research Conference ; September 21 - 24, 2008, Nashville, Tennessee USA