@article{Oza2011,
author = {Oza, S. and Thun, M.J. and Henley, S.J. and Lopez, A.D. and Ezzati, M.},
title= {How many deaths are attributable to smoking in the United States? Comparison of methods for estimating smoking-attributable mortality when smoking prevalence changes},
year = {2011},
doi = {10.1016/j.ypmed.2011.04.007},
journal = {Preventive Medicine },
volume = {52},
pages = {428--433},
}