@article{ref1,
title="Illness among flyers; temporary removals from flying USAF rated officers July-December, 1959",
journal="Aerospace medicine",
year="1961",
author="Luykx, H. M. and Murray, B. L.",
volume="32",
number="",
pages="505-515",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}