@article{ref1,
title="Post‐Traumatic Stress Disorder in Episodic and Chronic Migraine",
journal="Headache",
year="2008",
author="Peterlin, B. Lee and Tietjen, Gretchen and Meng, Sarah and Bigal, Marcelo",
volume="48",
number="4",
pages="517-522",
abstract="Objective.— To assess and contrast the relative frequency of self-reported post-traumatic stress disorder (PTSD) in patients with episodic migraine and chronic/ transformed migraine.<p />",
language="",
issn="0017-8748",
doi="10.1111/j.1526-4610.2008.00917.x",
url="http://dx.doi.org/10.1111/j.1526-4610.2008.00917.x"
}