@article{ref1,
title="Intragastric closure of an ingested open safety pin",
journal="Gastrointestinal endoscopy",
year="1978",
author="Altman, A. R. and Gottfried, E. B.",
volume="24",
number="6",
pages="294-295",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-5107",
doi="",
url="http://dx.doi.org/"
}