@article{ref1,
title="Exemption from compulsory wearing of seat belts--medical indications",
journal="British medical journal: BMJ",
year="1979",
author="Christian, M. S.",
volume="1",
number="6175",
pages="1411-1412",
abstract="Abstract unavailable.",
language="",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}