@article{ref1,
title="Comment on: Cumulative head impact exposure predicts later-life depression, apathy, executive dysfunction, and cognitive impairment in former high school and college football players",
journal="Journal of neurotrauma",
year="2016",
author="Riley, Edward T.",
volume="34",
number="7",
pages="1490-1490",
abstract="Letter to the editor. No abstract.  Keywords: American football; <p /> <p>Language: en</p>",
language="en",
issn="0897-7151",
doi="10.1089/neu.2016.4539",
url="http://dx.doi.org/10.1089/neu.2016.4539"
}