@article{ref1,
title="Lap-belt restraints in pregnancy",
journal="New England journal of medicine",
year="1971",
author="Ericsson, C. D.",
volume="284",
number="22",
pages="1271-1271",
abstract="Abstract unavailable.",
language="",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}