@article{ref1,
title="Child abuse in Polk County: investigation results and injury patterns",
journal="Iowa medicine : journal of the Iowa Medical Society",
year="1988",
author="Ellerbroek, C. J.",
volume="78",
number="9",
pages="413-415",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0746-8709",
doi="",
url="http://dx.doi.org/"
}