@article{ref1,
title="Primary and secondary prevention among adults: an analysis with comments on screening and health education",
journal="Preventive medicine",
year="1976",
author="Louria, D. B. and Kidwell, A. P. and Lavenhar, M. A. and Thind, I. S. and Najem, R. G.",
volume="5",
number="4",
pages="549-572",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-7435",
doi="",
url="http://dx.doi.org/"
}