@article{ref1,
title="Letter: An edge-punched card for recording accident cases",
journal="Irish medical journal",
year="1974",
author="Pegum, J. M.",
volume="68",
number="18",
pages="501-502",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0332-3102",
doi="",
url="http://dx.doi.org/"
}