@article{Flegal2007a,
author = {Flegal, K.M. and Graubard, B.I. and Williamson, D.F. and Gail, M.H.},
title= {Impact of smoking and preexisting illness on estimates of the fractions of deaths associated with underweight, overweight, and obesity in the US population},
year = {2007a},
doi = {10.1093/aje/kwm152},
journal = {American Journal of Epidemiology },
volume = {166},
number = {8},
pages = {975--982},
}