@article{ref1,
title="Testosterone and cortisol responses to competitive fighting in human males: a pilot study",
journal="Aggressive behavior",
year="1987",
author="Salvador, Alicia and Simon, Valerie and Suay, F and Llorens, L",
volume="13",
number="1",
pages="9-13",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}