@article{ref1,
title="Post-traumatic stress disorder",
journal="Archives of disease in childhood",
year="1999",
author="Yule, William",
volume="80",
number="2",
pages="107-109",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9888",
doi="",
url="http://dx.doi.org/"
}