@article{ref1,
title="The distinction between rate and ratio is important",
journal="Public health reports (1974)",
year="1989",
author="Fortney, J. A.",
volume="104",
number="2",
pages="200-200",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0033-3549",
doi="",
url="http://dx.doi.org/"
}