@article{ref1,
title="Rising helicopter crash deaths spur debate over proper use of air transport",
journal="Annals of emergency medicine",
year="2009",
author="Greene, Joseph",
volume="53",
number="3",
pages="15A-17A",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}