@article{ref1,
title="Child psychiatric disorder and relative age in school year: Peer effects need to be considered",
journal="British medical journal: BMJ",
year="2003",
author="Caan, Woody",
volume="327",
number="7426",
pages="1287-1287",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="10.1136/bmj.327.7426.1287",
url="http://dx.doi.org/10.1136/bmj.327.7426.1287"
}