@article{ref1,
title="Tragedy and insomnia",
journal="New England journal of medicine",
year="2001",
author="White, D. P.",
volume="345",
number="25",
pages="1846-1848",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM200112203452513",
url="http://dx.doi.org/10.1056/NEJM200112203452513"
}