%0 Journal Article %T Are Adolescent Cigarette Smokers Who Use Smokeless Tobacco More Likely to Continue Smoking in the Future than Cigarette-Only Smokers: Results from Waves I and II of the Adolescent Health Survey %A Michelle M. O'Hegarty %A Linda L. Pederson %A Katherine J. Asman %A Ann M. Malarcher %J ISRN Public Health %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/304508 %U http://dx.doi.org/10.5402/2012/304508