@article{ref1,
title="Maternal deaths attributable to violence and injury in North Carolina",
journal="North Carolina medical journal",
year="2010",
author="Harper, Margaret A. and Meyer, Robert E.",
volume="71",
number="6",
pages="581-583",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0029-2559",
doi="",
url="http://dx.doi.org/"
}