@article{ref1,
title="Heart disease and flying status: report of a case",
journal="Aerospace medicine",
year="1967",
author="Cooper, K. H.",
volume="38",
number="9",
pages="964-967",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}