@article{ref1,
title="Aeromedical transportation and general aviation",
journal="Aerospace medicine",
year="1971",
author="Gibbons, H. L. and Fromhagen, C.",
volume="42",
number="7",
pages="773-779",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}