@article{ref1,
title="Traffic accidents: increasingly frequent and fatal",
journal="Salud publica de Mexico",
year="2005",
author="Puentes, Esteban",
volume="47",
number="1",
pages="3-4",
abstract="Abstract unavailable. (Spanish language)",
language="",
issn="0036-3634",
doi="",
url="http://dx.doi.org/"
}