@article{ref1,
title="Observations on the clinical and brain wave patterns of professional boxers",
journal="Journal of the American Medical Association",
year="1954",
author="Kaplan, H. A. and Browder, J.",
volume="156",
number="12",
pages="1138-1144",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9955",
doi="",
url="http://dx.doi.org/"
}