@article{ref1,
title="Toward prevention of maternal mortality",
journal="New England journal of medicine",
year="1987",
author="Kemmerer, D. L.",
volume="317",
number="9",
pages="574-575",
abstract="Abstract unavailable.  <p>Concerns seat belts.</p>",
language="",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}