@article{ref1,
title="Subphrenic abscess related to the ingestion of a toothpick",
journal="New England journal of medicine",
year="1998",
author="Zambrana, J. L. and García-Gutiérrez, J. A. and Díez, F.",
volume="338",
number="2",
pages="133-134",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM199801083380216",
url="http://dx.doi.org/10.1056/NEJM199801083380216"
}