@article{ref1,
title="Large foreign bodies of the gastrointestinal tract",
journal="International surgery",
year="1981",
author="Ghani, A. and Hashmi, M. S.",
volume="66",
number="3",
pages="271-272",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-8868",
doi="",
url="http://dx.doi.org/"
}