@article{ref1,
title="More on compulsory helmets for motorcyclists",
journal="New England journal of medicine",
year="1979",
author="Brecher, G.",
volume="300",
number="21",
pages="1226-1226",
abstract="Abstract unavailable.",
language="",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}