@article{ref1,
title="Medical conditions--what role in crashes?",
journal="New England journal of medicine",
year="1970",
author="Waller, Julian A.",
volume="283",
number="8",
pages="429-430",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}