@article{ref1,
title="Guns ad libitum",
journal="New England journal of medicine",
year="1972",
author="Abrahamson, J. R.",
volume="286",
number="2",
pages="112-112",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}