@article{ref1,
title="Abdominal injuries: factors responsible for mortality",
journal="Revista Paulista de Medicina",
year="1973",
author="Haddad, J.",
volume="81",
number="4",
pages="215-222",
abstract="<p>[Abstract unavailable]</p><p>Language: pt</p>",
language="pt",
issn="0035-0362",
doi="",
url="http://dx.doi.org/"
}