@article{ref1,
title="Biological basis of aggression",
journal="Revista Paulista de Enfermagem",
year="1981",
author="Chida, A. M. and Vital, L. M.",
volume="",
number="1",
pages="13-15",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0100-8889",
doi="",
url="http://dx.doi.org/"
}