@article{ref1,
title="Retrograde amnesia: delayed forgetting after concussion",
journal="American journal of psychology",
year="1973",
author="Lynch, S. and Yarnell, P. R.",
volume="86",
number="3",
pages="643-645",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9556",
doi="",
url="http://dx.doi.org/"
}