@article{ref1,
title="Wounded presidents: 1981 almost repeats the events of 1881",
journal="Medical times",
year="1981",
author="Bollet, A. J.",
volume="109",
number="7",
pages="19-23",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-7583",
doi="",
url="http://dx.doi.org/"
}