@article{ref1,
title="Preventable deaths",
journal="Healthcare forum journal",
year="1993",
author="Wittenberg, R. L.",
volume="36",
number="5",
pages="40-1, 43",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0899-9287",
doi="",
url="http://dx.doi.org/"
}