@article{ref1,
title="Increased safety belt use following education in childbirth classes",
journal="Birth",
year="1987",
author="Chang, A. and Magwene, K. and Frand, E.",
volume="14",
number="3",
pages="148-152",
abstract="Abstract unavailable.",
language="",
issn="0730-7659",
doi="",
url="http://dx.doi.org/"
}