@article{ref1,
title="Tracking by telephone: locating the bullet in President Garfield, 1881",
journal="Medical instrumentation",
year="1981",
author="Roth, N.",
volume="15",
number="3",
pages="190-190",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-6689",
doi="",
url="http://dx.doi.org/"
}