@article{ref1,
title="External trauma as the sole cause of psychopathology is overly simplistic",
journal="Hillside journal of clinical psychiatry",
year="1987",
author="Kessler, R. J.",
volume="9",
number="2",
pages="236-244",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0193-5216",
doi="",
url="http://dx.doi.org/"
}