@article{Trinidad2009,
author = {Trinidad, D.R. and Pérez-Stable, E.J. and Emery, S.L. and White, M.M. and Grana, R.A. and Messer, K.S. },
title= {Intermittent and light daily smoking across racial/ethnic groups in the United States},
year = {2009},
doi = {10.1093/ntr/ntn018},
journal = {Nicotine and Tobacco Research },
volume = {11},
number = {2},
pages = {203210},
}