@article{ref1,
title="Licensing the driver with cardiovascular dysfunction",
journal="American heart journal",
year="1970",
author="Douglass, J. M. and Stock, M. S. and Light, W. O. and Burg, F. D.",
volume="80",
number="2",
pages="197-201",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8703",
doi="",
url="http://dx.doi.org/"
}