@article{ref1,
title="A problem of man and milieu: prolonged exposure to pure oxygen",
journal="Federation proceedings",
year="1963",
author="Helvey, W. M.",
volume="22",
number="",
pages="1057-1059",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0014-9446",
doi="",
url="http://dx.doi.org/"
}