@article{ref1,
title="The principle threats that damage the environment of our anthropologic system: their prevention",
journal="Anales de la Real Academia Nacional de Medicina",
year="1992",
author="Piédrola Gil, G.",
volume="109",
number="3",
pages="507-530",
abstract="<p>[Abstract unavailable]</p> <p>Language: es</p>",
language="es",
issn="0034-0634",
doi="",
url="http://dx.doi.org/"
}