@article{ref1,
title="Strategies to Reduce US HEMS Accidents",
journal="Air Medical Journal",
year="2012",
author="Winn, William and Thomas, Frank and Johnson, Kent",
volume="31",
number="2",
pages="78-83",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1067-991X",
doi="10.1016/j.amj.2011.12.011",
url="http://dx.doi.org/10.1016/j.amj.2011.12.011"
}