@article{ref1,
title="Re: Association of concussion symptoms with testosterone levels and erectile dysfunction in former professional US-style football players",
journal="Journal of urology",
year="2019",
author="Seftel, Allen D.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="<p>[Abstract unavailable]  Keywords: American football</p> <p>Language: en</p>",
language="en",
issn="0022-5347",
doi="10.1097/JU.0000000000000647",
url="http://dx.doi.org/10.1097/JU.0000000000000647"
}