@article{ref1,
title="Accident prevention",
journal="Pennsylvania medical journal",
year="1958",
author="Chapman, A. L.",
volume="61",
number="9",
pages="1201-1203",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0096-0667",
doi="",
url="http://dx.doi.org/"
}