@article{ref1,
title="Psychological sequelae of September 11",
journal="New England journal of medicine",
year="2002",
author="Langer, Gary",
volume="347",
number="6",
pages="443-5; author reply 443",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}