@article{ref1,
title="Non-perforating wounds of the abdomen",
journal="American journal of surgery",
year="1955",
author="Helsper, J. T.",
volume="90",
number="4",
pages="580-587",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9610",
doi="",
url="http://dx.doi.org/"
}