@article{ref1,
title="Primary care interventions to prevent child maltreatment: U.S. Preventive Services Task Force recommendation statement",
journal="Annals of internal medicine",
year="2013",
author="",
volume="159",
number="4",
pages="I-30",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4819",
doi="10.7326/0003-4819-159-4-201308200-00676",
url="http://dx.doi.org/10.7326/0003-4819-159-4-201308200-00676"
}