@article{ref1,
title="Positive predictive value of rib fractures as an indicator of nonaccidental trauma in children",
journal="Journal of trauma",
year="2004",
author="Ricci, L. R.",
volume="56",
number="3",
pages="721; author reply 721-2",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}