@article{ref1,
title="Traffic law enforcement and safety",
journal="Lancet",
year="2003",
author="Híjar-Medina, Martha Cecelia and Trostle, JA",
volume="362",
number="9386",
pages="833-833",
abstract="Abstract unavailable.",
language="",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}