@article{ref1,
title="Persistent hazards in the home accident pattern",
journal="American journal of public health",
year="1949",
author="Cole, W. G. and Armstrong, D. B.",
volume="39",
number="11",
pages="1434-1438",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}