@article{ref1,
title="Pneumomediastinum in a young male cocaine user",
journal="Annals of emergency medicine",
year="1985",
author="Morris, J. B. and Shuck, J. M.",
volume="14",
number="2",
pages="194-196",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}