@article{ref1,
title="Worsening left upper quadrant pain after a football injury",
journal="Journal of emergency nursing",
year="2002",
author="Evanovich Zavotsky, Kathleen and Zavotsky, Jeffry",
volume="28",
number="5",
pages="392-394",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0099-1767",
doi="",
url="http://dx.doi.org/"
}