@article{ref1,
title="Study of the effects of Hypericum perforatum on pain-induced aggression",
journal="Aggressive behavior",
year="2001",
author="Piper, BJ and Davis, D. and Mapes, R. and Hall, E. and Hill, Deanna and Bercaw, E and Renfrew, JW",
volume="27",
number="3",
pages="195-195",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}