@article{Cavelaars2000,
author = {Cavelaars, A. and Kunst, A.E. and Geurts, J.J.M. and Crialesi, R. and Grotvedt, L. and Helmert, U. and Lahelma, E. and Lundberg, O. and Matheson, J. and Mielck, A.},
title= {Educational differences in smoking: International comparison},
year = {2000},
doi = {10.1136/bmj.320.7242.1102},
journal = {British Medical Journal},
volume = {320},
number = {7242},
pages = {1102},
}