@article{ref1,
title="Surgical problems in aeronautics",
journal="Revista médica da aeronáutica do brasil",
year="1952",
author="Morais, C.",
volume="4",
number="3",
pages="61-68",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0370-6141",
doi="",
url="http://dx.doi.org/"
}