@article{ref1,
title="Principal types of intoxications in the Federal District",
journal="Salud publica de Mexico",
year="1969",
author="Olivares Urbina, C.",
volume="11",
number="2",
pages="203-210",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0036-3634",
doi="",
url="http://dx.doi.org/"
}