@article{ref1,
title="Self inflicted injuries of the anus, rectum and perineum",
journal="American journal of proctology",
year="1969",
author="Davis, J. H.",
volume="20",
number="3",
pages="209-213",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9521",
doi="",
url="http://dx.doi.org/"
}