@article{ref1,
title="Medicine and public health",
journal="Delaware medical journal",
year="2002",
author="Tillman, Ulder J.",
volume="74",
number="2",
pages="71-75",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0011-7781",
doi="",
url="http://dx.doi.org/"
}