@article{ref1,
title="A physiologic evaluation of the Flack test",
journal="Journal of aviation medicine",
year="1958",
author="Powell, T. J. and Sunahara, F. A.",
volume="29",
number="6",
pages="444-453",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}