@article{ref1,
title="Optimum recall period for reporting persons injured in motor vehicle accidents",
journal="Vital and health statistics, series 2",
year="1972",
author="Cash, W. S. and Moss, A. J.",
volume="",
number="50",
pages="1-33",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0083-2057",
doi="",
url="http://dx.doi.org/"
}