@article{ref1,
title="Ocular perforating injury caused by a sparrow",
journal="British medical journal: BMJ",
year="1975",
author="Collin, J. R.",
volume="3",
number="5982",
pages="520-521",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}