@article{ref1,
title="Cigarette smoking, road traffic accidents and seat belt usage",
journal="Public health",
year="1983",
author="Grout, P. and Cliff, K. S. and Harman, M. L. and Machin, D.",
volume="97",
number="2",
pages="95-101",
abstract="Abstract unavailable.",
language="",
issn="0033-3506",
doi="",
url="http://dx.doi.org/"
}