@article{ref1,
title="Cycle helmets. bma report does not give the whole picture",
journal="British medical journal: BMJ",
year="1999",
author="Jackson, H.",
volume="319",
number="7216",
pages="1071-1072",
abstract="Abstract unavailable.",
language="",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}