@article{ref1,
title="Retired American football players have a four times higher chance of getting Alzheimer disease or amyotrophic lateral sclerosis",
journal="Brain and nerve",
year="2013",
author="Kuwahara, Satoshi and Sato, Yasunori",
volume="65",
number="8",
pages="996-997",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="1881-6096",
doi="",
url="http://dx.doi.org/"
}