@article{ref1,
title="Periodic health examination, 1993 update: 1. Primary prevention of child maltreatment. The Canadian Task Force on the Periodic Health Examination",
journal="CMAJ : Canadian Medical Association journal",
year="1993",
author="MacMillan, H. L. and MacMillan, J. H. and Offord, D. R.",
volume="148",
number="2",
pages="151-163",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}