@article{ref1,
title="Relationship between severe headache and elevated depression and anxiety scores after sports-related concussion",
journal="PM & R : the journal of injury, function, and rehabilitation",
year="2016",
author="Bell, Kathleen R. and Vargas, Bert B. and Wilmoth, Kristin and Didehbani, Nyaz and Godbey, Elida and Paliotta, Christopher and Cullum, Munro",
volume="8",
number="9S",
pages="S246-S246",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1934-1482",
doi="10.1016/j.pmrj.2016.07.438",
url="http://dx.doi.org/10.1016/j.pmrj.2016.07.438"
}