@article{ref1,
title="Headaches after traumatic brain injury",
journal="Archives of physical medicine and rehabilitation",
year="2014",
author="Bell, Kathleen R. and Hoffman, Jeanne and Watanabe, Homas",
volume="95",
number="4",
pages="793-794",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-9993",
doi="10.1016/j.apmr.2013.05.007",
url="http://dx.doi.org/10.1016/j.apmr.2013.05.007"
}