@article{doi:10.1001/jama.2012.91,
author = {Mitka M},
title = {CLean air standards},
journal = {JAMA},
volume = {307},
number = {6},
pages = {553},
year = {2012},
doi = {10.1001/jama.2012.91},
URL = { + http://dx.doi.org/10.1001/jama.2012.91},
eprint = {/data/Journals/JAMA/4851/jch20000-3-1.pdf}
}