@article{ref1,
title="An esophageal foreign body impaction from a Tums E-X tablet",
journal="Gastrointestinal endoscopy",
year="1997",
author="Wisniewski, R. M. and Stone, D. D. and Fang, J. C.",
volume="45",
number="6",
pages="518-521",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-5107",
doi="",
url="http://dx.doi.org/"
}