@article{ref1,
title="Safety and Preventive Medicine",
journal="American journal of public health",
year="1962",
author="Berry, C. M.",
volume="52",
number="10",
pages="1750-1750",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}