@article{ref1,
title="Post-natal head injury as a cause of mental defect",
journal="Archives of pediatrics",
year="1960",
author="Berg, J. M.",
volume="77",
number="",
pages="207-211",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-6630",
doi="",
url="http://dx.doi.org/"
}