@article{ref1,
title="Water chestnut of the esophagus",
journal="American journal of gastroenterology",
year="1998",
author="Tsang, T. K.",
volume="93",
number="12",
pages="2634-2635",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9270",
doi="10.1111/j.1572-0241.1998.02634.x",
url="http://dx.doi.org/10.1111/j.1572-0241.1998.02634.x"
}