@article{ref1,
title="Categorizing fear: the role of trauma in a clinical formulation",
journal="American journal of psychiatry",
year="1999",
author="Burton, J. K. and Marshall, R. D.",
volume="156",
number="5",
pages="761-766",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-953X",
doi="",
url="http://dx.doi.org/"
}