@article{ref1,
title="Smallpox and bioterrorism",
journal="New England journal of medicine",
year="2002",
author="Drazen, Jeffrey M.",
volume="346",
number="17",
pages="1262-1263",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM200204253461702",
url="http://dx.doi.org/10.1056/NEJM200204253461702"
}