@article{ref1,
title="Surface area estimates",
journal="Annals of emergency medicine",
year="1989",
author="Callahan, C. W.",
volume="18",
number="10",
pages="1137-1137",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}