@article{ref1,
title="Effects of helicopter service on survival after trauma. Service is part of a continuum of care",
journal="British medical journal: BMJ",
year="1995",
author="Greengross, P.",
volume="311",
number="7013",
pages="1164-1165",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}