@article{ref1,
title="Sex",
journal="Journal of the Kentucky Medical Association",
year="1967",
author="Keller, W. K.",
volume="65",
number="9",
pages="879-880",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0023-0294",
doi="",
url="http://dx.doi.org/"
}