@article{ref1,
title="1994 annual transport statistics and transport fees survey",
journal="Air Medical Journal",
year="1994",
author="Mayfield, T.",
volume="13",
number="4",
pages="132-135",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1067-991X",
doi="10.1016/S1067-991X(05)80179-8",
url="http://dx.doi.org/10.1016/S1067-991X(05)80179-8"
}