@article{ref1,
title="Spreading depression of electrical activity in the cerebral cortex following local trauma and its possible role in concussion",
journal="Transactions of the American Neurological Association",
year="1948",
author="Echlin, F.",
volume="73",
number="73 Annual Meet.",
pages="199-202",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-9479",
doi="",
url="http://dx.doi.org/"
}