@article{ref1,
title="Re: "Mortality reduction with air bag and seat belt use in head-on passenger car collisions" (Letter)",
journal="American journal of epidemiology",
year="2001",
author="Cummings, P. and Weiss, Noel S.",
volume="154",
number="4",
pages="387-389",
abstract="Abstract unavailable.",
language="",
issn="0002-9262",
doi="",
url="http://dx.doi.org/"
}