@article{ref1,
title="Characteristics and putative mechanisms in boys at risk for drug abuse and aggression",
journal="Annals of the New York Academy of Sciences",
year="1996",
author="Pihl, R. O. and Peterson, J.",
volume="794",
number="",
pages="238-252",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0077-8923",
doi="",
url="http://dx.doi.org/"
}