@article{ref1,
title="International comparisons: we need to know a lot more",
journal="Injury prevention",
year="2001",
author="Langley, John Desmond",
volume="7",
number="4",
pages="267-269",
abstract="Abstract unavailable.",
language="en",
issn="1353-8047",
doi="",
url="http://dx.doi.org/"
}