@article{ref1,
title="Physician flight accidents. AM 66-25",
journal="AM reports",
year="1966",
author="Mohler, S. R. and Freud, S. F. and Veregge, J. E. and Umberger, E. L.",
volume="",
number="",
pages="1-4",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1545-1518",
doi="",
url="http://dx.doi.org/"
}