@article{ref1,
title="Primary care interventions to prevent child maltreatment: recommendation statement",
journal="American family physician",
year="2014",
author="",
volume="90",
number="",
pages="Online-Online",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-838X",
doi="",
url="http://dx.doi.org/"
}