@article{ref1,
title="Concussion sequelae",
journal="Journal of family practice",
year="1990",
author="Soman, M.",
volume="31",
number="6",
pages="588, 668-588, 668",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0094-3509",
doi="",
url="http://dx.doi.org/"
}