@article{ref1,
title="Early Signs of Impending Breakdown in Flight Personnel: Practising Physicians Contribution to Commercial Flying Safety",
journal="CMAJ : Canadian Medical Association journal",
year="1961",
author="Phillips, P. B.",
volume="84",
number="3",
pages="149-149",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}