@article{ref1,
title="Post-call accidents",
journal="New England journal of medicine",
year="2005",
author="Halpern, Scott D.",
volume="352",
number="14",
pages="1491-2; author reply 1491",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM200504073521419",
url="http://dx.doi.org/10.1056/NEJM200504073521419"
}