@article{ref1,
title="The hazards of war: blast injury headache",
journal="Journal of Pain",
year="2010",
author="Walker, Rheeda L. and Clark, Michael E. and Nampiaparampil, Devi E. and McIlvried, Lisa and Gold, Michael S. and Okonkwo, Renata and Kerns, Robert D.",
volume="11",
number="4",
pages="297-302",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1526-5900",
doi="10.1016/j.jpain.2009.12.001",
url="http://dx.doi.org/10.1016/j.jpain.2009.12.001"
}