@article{ref1,
title="Battering during pregnancy: intervention strategies",
journal="Birth",
year="1987",
author="Helton, A. S. and Snodgrass, F. G.",
volume="14",
number="3",
pages="142-147",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0730-7659",
doi="",
url="http://dx.doi.org/"
}