@article{ref1,
title="Open-and-Shut Case: An Uncommon Cause of GI Bleeding",
journal="Digestive diseases and sciences",
year="2019",
author="Yik, Barnabas and Podboy, Alexander and Shah, Nimeesh",
volume="64",
number="7",
pages="1789-1791",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0163-2116",
doi="10.1007/s10620-018-5447-z",
url="http://dx.doi.org/10.1007/s10620-018-5447-z"
}