@article{Thun2008,
author = {Thun, M. J. and Hannan, L. M. and Adams-Campbell, L. L. and Boffetta, P. and Buring, J. E. and Feskanich, D. and Flanders, W. D. and Jee, S. H. and Katanoda, K. and Kolonel, L. N. and Lee, I. M. and Marugame, T. and Palmer, J. R. and Riboli, E. and Sobue, T. and Avila-Tang, E. and Wilkens, L. R. and Samet, J. M.},
title= {Lung cancer occurrence in never-smokers: an analysis of 13 cohorts and 22 cancer registry studies},
year = {2008},
doi = {10.1371/journal.pmed.0050185},
URL = {http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=18788891},
journal = {PLoS Med},
volume = {5},
number = {9},
pages = {e185},
}