@article{ref1,
title="Weather and deaths in Pittsburgh, Pennsylvania: a comparison with Birmingham, Alabama",
journal="International journal of biometeorology",
year="1977",
author="States, S. J.",
volume="21",
number="1",
pages="7-15",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0020-7128",
doi="",
url="http://dx.doi.org/"
}