@article{ref1,
title="On the cost of repealing motorcycle helmet laws",
journal="American journal of public health",
year="1983",
author="Somers, R. L.",
volume="73",
number="10",
pages="1216-1216",
abstract="Abstract unavailable. (Letter)",
language="",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}