@article{ref1,
title="Environmental transmission of violent criminal behavior in siblings: a Swedish national study",
journal="Psychological medicine",
year="2014",
author="Kendler, K. S. and Morris, N. A. and Lönn, S. L. and Sundquist, J. and Sundquist, K.",
volume="44",
number="15",
pages="3181-3187",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0033-2917",
doi="10.1017/S0033291714000932",
url="http://dx.doi.org/10.1017/S0033291714000932"
}