@article{ref1,
title="Incidence of craniocerebral trauma in the United States, 1970-1975",
journal="Transactions of the American Neurological Association",
year="1977",
author="Caveness, W. F.",
volume="102",
number="",
pages="136-138",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-9479",
doi="",
url="http://dx.doi.org/"
}