@article{ref1,
title="A comparison of the costs and performance of an emergency helicopter and land ambulances in a rural area",
journal="Injury",
year="1994",
author="Sasada, M.",
volume="25",
number="10",
pages="689-690",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-1383",
doi="",
url="http://dx.doi.org/"
}