@article{ref1,
title="Letter: Prevalence and malignancy of Alzheimer disease",
journal="Archives of neurology",
year="1976",
author="Lijtmaer, H. and Fuld, P. A. and Katzman, R.",
volume="33",
number="4",
pages="304-304",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9942",
doi="",
url="http://dx.doi.org/"
}