@article{ref1,
title="Accidents as public health problem",
journal="Gaceta Medica de Mexico",
year="1973",
author="Ordóñez, B. R.",
volume="105",
number="4",
pages="358-363",
abstract="<p>[Abstract unavailable]</p> <p>Language: es</p>",
language="es",
issn="0016-3813",
doi="",
url="http://dx.doi.org/"
}