@article{ref1,
title="Civilian injuries of the rectum and anus",
journal="Diseases of the colon and rectum",
year="1979",
author="Haas, P. A. and Fox, T. A.",
volume="22",
number="1",
pages="17-23",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0012-3706",
doi="",
url="http://dx.doi.org/"
}