@article{ref1,
title="Extraversion as a risk factor",
journal="Journal of the American Academy of Child and Adolescent Psychiatry",
year="2003",
author="Spirling, Lucy I. and Persaud, Raj",
volume="42",
number="2",
pages="130-130",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0890-8567",
doi="10.1097/00004583-200302000-00005",
url="http://dx.doi.org/10.1097/00004583-200302000-00005"
}