@article{ref1,
title="Child injury patterns and high risk periods in sibling groups enrolled in an HMO",
journal="Pediatric research",
year="2002",
author="Johnston, Brian Duncan and Grossman, David C. and Thompson, R. S.",
volume="51",
number="4",
pages="181A-181A",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0031-3998",
doi="",
url="http://dx.doi.org/"
}