@article{ref1,
title="The utility of helicopter transport of trauma patients from the injury scene in an urban trauma system",
journal="Journal of trauma",
year="2003",
author="Porter, K. M.",
volume="55",
number="1",
pages="184-184",
abstract="Abstract unavailable.",
language="",
issn="0022-5282",
doi="10.1097/01.TA.0000071947.07417.28",
url="http://dx.doi.org/10.1097/01.TA.0000071947.07417.28"
}